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Create an AccountProduct Description 🚨Secure Your Space with CallTou Door Alarm🚨 Equip your home and business with the ultimate security solution! Our 4 Alarm Modes offer versatile protection:🔒Ordinary Alarm Mode: 1-minute alert if the door opens🔔Doorbell Mode: Warm "Ding Dong" welcome🚫Alarm and Stop Mode: Sudden door opening triggers a loud alarm, stops on closure🚪Door Closing Reminder: Repeated "Di Di" until the door is secured Experience peace of mind with a deafening 120dB alarm - ideal for kids' safety and theft prevention. Installation is a breeze; simply stick the sensor on your door, window, drawer, pool, or garage, maintaining a 0.4-inch distance. The ultra-sensitive magnetic sensor swiftly detects changes, and with 2 included AAA batteries, you're ready to roll! Get your CallTou 3-pack today and enjoy 24/7 customer support. Protect what matters most!💪🏠🔒 4 Alarm Modes: It has 4 modes of alarm 1.Ordinary alarm mode (Alarm will last for 1 minute if your door is being open)--Uses - Alarms / Anti-theft 2. Doorbell mode (“Ding dong”, rings once as a welcome tone )--Uses Business 3. Alarm and Stop mode (It will alarm loudly if the door is open, and it will stop as soon as your door is closed)--Uses Children or elderly going out 4. Door closing reminder mode ("Di Di", the sound from low to high, it will remind you by repeated sound until the door is closed) --Uses Refrigerator forgot to close reminder / Alarms Perfect door alarm for kids' safety, anti-breakin, home and business‘ security Easy to Install: This security kits can be easily installed on the door/window/drawer/pool/garage. Just need to stick the alarm sensor on the surface.Press the switch and he starts working. Technical Details Item Weight 9.1 ounces Package Dimensions 5 x 3.66 x 2.24 inches Country of Origin China Batteries 6 AAA batteries required. (included) Batteries Included? Yes Batteries Required? Yes Noise Level 120 dB
About this item : This door window alarm is 120dB loud enough to inform you if the kids are trying to sneak out at night. And the noise scares toddlers so they won’t leave the house without you EASY TO INSTALL & USE - Easily mounted by adhesive, just tape it on the window or door then all is done! No wiring is needed! No screws are required! (NOTICE: MAKE SURE THE GAP BETWEEN THE ALARM AND MAGNET PART IS WITHIN 0.6IN.) Home Security Solution: Security Alerts are perfect for notifying you when there is an unwanted entrance. Protect your children or the elderly from leaving the room and causing danger, or prevent anyone from sneaking in and out. ULTRA-SLIM DESIGN: Ultra-thin door and window alarms with 2 adjustable settings modes (off/on), the simple switch allows you to quickly turn off and on when you need it, with no need to reset. 3xLR44 batteries included per alarm WHAT YOU GET – SANJIE 5-pack window door alarm. We will provide 100% customer satisfaction service and 24*7 customer support. These door alarms with an ultra-slim build and sleek design can be put easily wherever you need them Batteries: 3 LR44(included) Size: 1.5" x2.9"/0.4"x1.2"(1 pack) Weight: 0.11lb(1 pack) Pack: 5 packs Notice: Not UL-2017 compliant! BEST & SIMPLISAFE ALARM SYSTEM FOR HOME About CallToU CallToU door and window alarms for home is used around the house or office, apartment, basement bedroom to prevent access to any doors, windows, cabinets and drawers— anything that opens and closes. What is our vision? Our vision is make you and your family feel safe,give you and your family peace of mind,and make the life better. What kind of security product do we provide? We provide door chime,window alarm,PIR motion sensor,doorbell to keep you security. 120dB Loud Alarm Enough Easy to Install & Use and Very Sticky. Small and Barely Noticeable. 12 Months Battrey Life and Low Battery Indicator. Window Alarms for Kids Safety Door Alarms for dementia elderly Window Alarms For Home Security Easy to Install The door and window alarms are easy to use. Just remove the label and stick it to your door or window. Small and Sticky The alarm is small and barely noticeable. Lightweight and sticky so you don't worry about falling. 120dB Loud Alarm Enough If someone is breaking into your home or you want to deter someone, it's loud enough to alert you and warn someone. Technical Details Manufacturer SanJie Part Number YYDOA01 Item Weight 6.4 ounces Product Dimensions 3 x 1.5 x 0.8 inches Country of Origin China Batteries 3 LR44 batteries required. (included) Is Discontinued By Manufacturer No Power Source Battery Powered Item Package Quantity 1 Sound Level 120 dB Special Features real-time sound alarm, wireless Batteries Included? Yes Batteries Required? Yes Battery Cell Type Silver Oxide
Effortless Installation Pairing the sensor and receiver is a breeze, already done for your convenience. Simply insert the receiver into a standard outlet, then smoothly affix the door/window sensor with the provided double-sided adhesive to any entryway. Expansive Reach & Customization With a remarkable 1000-feet range, our wireless door sensor covers every nook of your dwelling or establishment. Each business door chime can effortlessly sync with an infinite number of magnetic sensors. Plus, tailor distinct ringtones to individual sensors for precise door identification. Smart Home Monitoring Stay ahead of the game with our Wireless Door Chime's entry alert system. Whether you're keeping tabs on a curious toddler sneaking out of their room or ensuring the safety of elderly loved ones with dementia, this device serves as a reliable reminder. Enhanced Home Security Our door sensor chime stands guard against intruders. When a burglar attempts entry, the business door chime leaps into action, deterring break-ins with its responsive magnetic sensor separation. Versatile Sound Control From a whisper-quiet 0 dB to a robust 120 dB, the door alarm with chime boasts 5 adjustable volume settings. Even at 0 dB, it won't disturb a sleeping baby. What's more? Its memory function retains your preferred tune after every re-plug, ensuring continuity of your chosen settings. Technical Details Item Weight 8.4 ounces Product Dimensions 4.72 x 3.54 x 4.13 inches Item model number DS10BL 3-1 Is Discontinued By Manufacturer No Color 1 receiver 3 sensors Material ABS Shape Ellipse Power Source battery powered, dc Voltage 110 Volts Installation Method Screw-In & Self-Adhesive Item Package Quantity 1 Temperature Range -22~158 Degrees Fahrenheit Sound Level 110 dB Type of Bulb LED Plug Format A- US style Batteries Included? Yes Batteries Required? Yes Battery Cell Type Alkaline Description Pile 23A 12V
Product Description WIRELESS DOG DOORBELLS FOR DOOR POTTY TRAINING CORRECT BAD HABITS: Our dog bells can develop loved dog's good habit in an easier way. It is a premier solution for dog potty training, barking, scratching. Doggie can communicate with you when they need to go out or come in HOW TO TRAIN YOUR PET: Put a bit of Peanut Butter on the Bell when you want let him out, and he'd notice it when he was ready to come in and lick it, which triggered the bell. Every time he does this you praise him up and down, and eventually you use less and less peanut butter WORKS FOR ALL DOGS: This dog doorbells solves the problem of small dog pressing, No need to press, Just touch or slip over the button lightly to activate, easy for any small or big dogs to use and flexibly increase or decrease the receiver and transmitter according to your needs, durable christmas gifts EASY TO SET UP: No screws or wires needed, the Activator is easily mounted on door or wall with a 3M adhesive strip, no tools required CUSTOMIZABLE: 55 ring tones and 5 volume levels can be customized to your choice , Mute mode and LED Flash is also available which is easy for people including the hearing impaired to notice.With an effective working range of up to 300 feet, you'll always be able to hear your pup anywhere in the home TIPS: If you add more units to work with previous units, you need to pair them before using. How To Change Ringtone & Pair The Dog Doorbell? Step 1 Press the " forward " / " backward " button on the receiver to choose your favorite melody. Step 2 Press the volume button to select volume. Step 3 Press and hold down the volume button, until it makes a "Ding" sound and the receiver indicator flashes. Step 4 Press the dog doorbell to confirm whether the current ringtone is the one you have set, if yes, the pairing is completed. Easy Installation Plug in the receiver. Easily stick the provided hook & loop to the back of the dog button.
Product Description 【LED Screen & 55 Music with Mute to Loud dB】5 adjustable levels(0-110 dB) and Motion sensor door chime offers 55 chimes from the traditional"Ding Dong" to various well know chimes,set different doorbell chimes for different area to know which area you have a visitor come in through the LED screen number, which can effectively offer additional assistance to the hearing impaired.【Mini Contact Sensor】 Motion sensor detection doorbell (Size:1.97x1.97x2.75inch)is shaped like an eyeball(with detection light) is fixed with the base by magnet and rotate 360 degrees to adjust the detection angle.【150M/500FT Widely Range】Door chime entry alert signal can easily cross through doors or walls, even if you are a few rooms away or on another floor. Note: The battery level will affect the signal receiving range. It is recommended to change it once every 12 months.【Expandable Door Chime Sensor】One door chime motion sensor receiver can be paired with up to 8 door sensors,and 1 door sensor can be paired with up to 55 door chimes. By adding new sensor, you can also pair with different ringtone, so that you can realize exactly which door/area is triggered.【Easy to Install】Plug the business door entry chime into socket, tear off the tape behind door sensor chime then paste on the door. The wireless door chime has been matched before shipment. If you need to replace music or add a transmitter, please re-match (Hold Receiver's volume button over 3 seconds to 5 seconds, it will trigger clean pairing function). Use Scenario Multi-Function Instructions for Use 1 . Plug the receiver into the socket 2 . Press the send button for about 3 seconds, when the receiver hears the "ping pong" sound, the send light will flash. 3 . Press the receiver's volume control button for about 5 seconds, and turn off the transmitter light hear the "ding ding" sound. 4.complete Sensor Sensitivity Detection angle With a transmission range of 200 meters, The sensing distance is 2-8 meters, and the sensing angle is 15° up and down and 120° left and right. It can detect the movement within its range, fixed on the base with a magnet, and can be rotated 360° to adjust the detection angle. Situational Use What precautions should be taken during use? Infrared sensors detect temperature changes. Therefore, they react not only to people but also to animals and sense light temperature, which may cause them to malfunction. Choose a location that is less likely to be affected. Is double-sided tape for installation included? Yes, the unit is supplied with double-sided tape for installation. Accessories include the transmitter sensor, receiver, mounting screws, double-sided tape (for the transmitter sensor), and operating instructions. Note: Do not install in wet area. What type of lithium-ion battery is used on the side of the transmitter sensor? The battery type is a CR2 3V lithium-ion battery. Can this product be used outdoors? It should be used under the eaves or indoors. What are the advantages of the motion sensor chime? Since the chime operates by detecting infrared light and temperature, there is no need to take any action, such as turning it on. They are also ideal for security measures. Item Weight 8.1 ounces Package Dimensions 4.84 x 4.06 x 3.62 inches Item model number CC22BL-PIR11BL 1-1 US Included Components Motion sensor door chime Batteries Included? Yes Batteries Required? Yes Battery Cell Type Alkaline More Products Wireless Door Chime Dog Training Buttons Dog Training Buttons Quantity 1-1 4 6 Color Black Multiple Multiple Function Doorbell sensor Dog Command Buttons Dog Command Buttons Materials Plastic Plastic Plastic Battery ✔ ✔ ✔
Product Description 【DOOR CHIMES for BUSINESS When ENTERING】Magnetic door sensor will automatically trigger the receiver when the magnetic stripe is separated 1cm and the receiver will alerts immediately whenever the door or windows is opened. It works great as an entry door bell and also helpful to know when visitors have come in. If our children and the elderly open doors and windows, we can also know in time 【600 FT RANGE & 20 DOOR SENSOR EXPANDABLE】The range of entry alert chime is 600 feet far enough to cover every door and window in your house. Each wireless doorbell receiver can pair up to 20 magnetic contact sensor(or call buttons) and each door sensor can add unlimited receivers. Our door chime can be widely used different occasion for your all of needs, such as your home, store, office and business 【EASY TO INSTALL】Door open chime don't need tool. Plug the receiver into socket, tear off the tape behind door sensor chime then paste on the door. The wireless door chime has been matched before shipment. If you need to replace music or add a transmitter, please re-pair, Also need to re-pair if you change the battery 【EASY PROGRAMMING】 55 chime options with blue light flashing and we could easily change them whenever we want. 5 levels of adjustable volume from 0-110 dB (Mute Mode Included). Different ringtones are set for different door sensors 【365 DAYS WARRANTY】 Our wireless door sensor is approved by FCC, CE and RoHS; we provide customer service on our products and we will always do our best to support you. Besides, we will offer 365 days warranty and 24 hours customers service. Any problems about door open chime, pls contact with our customer service team to get a full refund or replacement Alert when kids open the window Alert when someone comes into the office Ensure home safety Alert if someone enters store How To Change Ringtone & Pair The Door Chime? Step 1 Press the " forward " / " backward " button on the receiver to choose your favorite melody. Step 2 Press and hold down the volume button, until it makes a "Ding" sound and the receiver indicator flashes. Step 3 Separate the sensor quickly, it will makes a "Ding-Ding" sound and the receiver indicator flashes. Step 4 Separate the sensor again to confirm whether the current ringtone is the one you have set, if yes, the pairing is completed. How To Change The Batteries? Step 1 Gently move the cover of magnetic door sensor. Step 2 Remove the battery out to replace a new one. Designed for you Dog Doorbells Pagers Emergency Alert Paging System Waterproof ✔ ✔ ✔ ✔ Maximum Signal Range 300 ft 300 ft 300 ft 720 ft Volume 5 Levels Volume 5 Levels Volume 5 Levels Volume — Ringtones 55 55 55 — Plug-in Receiver ✔ ✔ ✘ ✘ Technical Details Item Weight 9.5 ounces Package Dimensions 4.84 x 4.02 x 3.58 inches Country of Origin China Batteries 2 AAA batteries required. (included) Is Discontinued By Manufacturer No Size 2 Sensors Color White Material ABS Power Source Battery Powered Voltage 260 Volts Item Package Quantity 1 Sound Level 55 dB Batteries Included? Yes Batteries Required? No Battery Cell Type Alkaline
Product Description 【Door Chimes】DOOR CHIME has been professionally tested, and we have also upgraded the door magnet, which has a longer service life and more durability to meet your needs for both daily and business use. 【Wireless & Easy Installation】-Wireless door chime helps you save the trouble of wire installation. Just need to plug in the receiver and stick the wireless door sensor on the door/window you want and set different ringtones to know which door is opened when entering. 【Protect the Safety of Your Family】-If you have elderly with dementia, the door open chime can protect your aged parents from going out without your knowledge. If you have naughty children who likes to sneak out, this wireless door buzzer can help you take better care of your children. 【55 Ringtones & 5 Volume】-The door entry alert is equipped with 55 kinds of ringtones of different styles for your choices. 5 levels volume adjustable, from silent to noisy(0-110 db), you don't have to worry about not hearing the sound. 【LED Number Display】-The LED indicator can display different numbers to help you easily distinguish which door is opened. 【Receiving Range of 500Ft/150m】-Large acceptable range allows you to know the arrival of customer on the first floor when you are working on the other floor which is suitable for business entry. Even the basement/garage can be covered, and the door chime can ensure that you can notice it immediately when they are invaded. 【Satisfactory After-Sales Service】-Amazon Logistics is our partner, we can quickly deliver the package to your home within 3-14 days, we provide a 30-day refund service.If there are quality problems with the door chimes, please feel free to contact us. So as to give you the best shopping and using experience. Door Chimes When Door Opens Door Alarm Sensor How to pair and select music? Step1 Press the “forward”/”backward” button on the receiver to choose your favorite melody. Step2 Long press the volume button for 5-7s until the receive "ding" with LED blinking rapidly. Step3 Quickly separate the two parts of door sensor to activate the transmitter to send a signal to the receiver. Step4 After successful pairing, when the sensor is moved, the receiver will sound to alert you that the door or window is opened. Door Chimes When Door Opens for Home
Product Description The door chimes when door opens for home and for business has 1000FT reliable long working range. Perfect entry alert chime when door opens for home and business. What about insecure front door, child safety gate, upstairs window, cabinet, basement door [ Easy to Install] This waterproof wireless door sensor chime are paired already, all you need to do is attach the transmitter on your door or window. The receiver is portable battery powered. LED indicators are suitable for the elderly who are hearing impaired [4 Remind Mode ] Door entry chime's receiver is with 4 remind modes, includes deaf doorbell flashing light has: 1,ringing + vibration 2,ringing + flashing light 3,ringing + vibration + flashing light 4,flashing light four modes to choose, flashing light silent mode, do not worry about the ringing will disturb the sleeping baby. LED light flashing, ringing vibration, you will never miss any visitors, in different scenes can choose different modes [ Smart Door Chimes] The receiver of door open chimes is equipped with 20 kinds of ringtones for your choices. 5 levels adjustable volume, from silent to noisy(0 db to110 db), and door sensor chime are wireless long-range operating up to 1000 feet(no blocking), you don't have to worry about not hearing the sound [After-sales Service ] The entry alert chime is can be a gift for relatives and friends to used to remind visitors, family anti-theft,etc. It has a 1-year warranty and please just feel free to contact us User Manual Long Working Range 1000FT Long Working Range 1000FT and 5 Volume level How to replace the battery? Step 1: Use a small screw to align the hole below the door magnet and pry it open Step 2: Open the back cover and take out the battery for replacement 4 Remind Mode As a Christmas Gift Technical Details Manufacturer CallToU Item Weight 8.1 ounces Package Dimensions 3.78 x 3.46 x 2.91 inches Batteries 2 AAA batteries required. (included) Batteries Included? Yes Batteries Required? No
Product Description The wirelss door chime wireless for business when entering can turn off on transmitter and receiver when the sensor trigger. The sensor and the receiver both is with turn off button, which easy your life [4 Working Modes] Our door sensor chime is with 4 working modes: 1) Ringtone Flash 2) Ringtone 3) Flash 4) Mute. Flash mode is durable for the hard of hearing people and the mute mode can let you have a quiet environment for your work or study. When the door chimes is seperated, the digital nubmer light will flash in mute mode [Long Service Life] Door entry chime with one standard household AAA battery in equipment and design of Ultra-Low-Power, the sensor can easily last 1-2 years when the battery is dead, you can replace it with a new one to continue working [ Easy to Install & 1000FT Working Range ] This wireless door sensor chime are paired already, all you need to do is attach the transmitter plug the receiver into any standard outlet, Last please take the insulating paper away before using the sensor pick a chime you like and here we go. The door open alarm has 1000FT reliable long working range, perfect entry alert chime when door opens for home and business [ Smart Door Chimes] The receiver is equipped with 4 kinds of ringtones of different styles for your choices. 5 levels volume adjustable, from silent to noisy(0 db to110 db), and door sensor chime are wireless long-range operating up to 1000 feet(no blocking), you don't have to worry about not hearing the sound. The LED indicator can display different numbers to help you easily distinguish which push button is calling Long Working Range, with Digital Display Function Plug-in receiver with 4 remind modes: How to pair with receiver? Technical Details Manufacturer CallToU Item Weight 5.9 ounces Product Dimensions 2.7 x 3.2 x 3.5 inches Country of Origin China Item model number CC23 2-1 Size 2 sensors + 1 receiver Color white Included Components Door chime receiver Batteries Required? No
Product Description Wide Range of Uses:This wireless door open sensor chime can be used in a variety of scenario,such as home security, business ,office;you can use it as door alarm chime for kids safety,dementia patients,elderly,Autism,anti-theft,keep an eye on your loved ones and home to keep you peace of mind,especially the night;you can also use it as a door open alert for commercial,business,shop,office to keep track of your customers,clients,visitors. Number Display & Ringing Customization: The receiver has 1-6 display numbers to let you know which door/window is opened quickly, allowing you to react quickly; 5 volume levels, from silent to 120db,38 ringing tones to choose, you can set different ringing tones for different door sensors, making it easy for you to distinguish. Long Working Range:This wireless door open chime for home is up to 400 ft in the open area, the magnetic door sensor will automatically trigger the receiver when the magnetic strip is separated over 0.6 inch and the receiver will alerts immediately whenever the door or window is opened. Easy to Install & Expandable System: No WIFI, No Fees, Simply use the adhesive tape to attach the door magnet sensor and plug in the receiver. This is an expandable home security system, you can add more receivers or door sensors, 1 door sensor can be paired with many receivers, a receiver can be paired with up to 6 door sensors. After-sales guarantee service: Amazon Logistics is our partner, our door sensor chime can be quickly delivered to your home the next day, we provide 30 days free return, 1 year warranty, 24 hours fast reply email, no matter how long your purchase time, any questions can always contact us. CallToU Number Display Wireless Door Sensor Chime Door chimes when door opens Protect elderly people with dementia or hearing impairments from sneaking out Never miss a visitor When your child tries to open the door and window and wants to go out, you can find out in time Service Friendly Service If there are any quality problems with the products, please feel free to ask us. So as to give you the best shopping and using experience. Technical Details Color Black Material ABS Power Source AC Installation Method Self-Adhesive Item Package Quantity 1 Sound Level 110 dB Plug Format A- US style Special Features Easy to Install Included Components Batteries Batteries Included? Yes Batteries Required? Yes Battery Cell Type Alkaline Description Pile 12V 23A
Product Description 【Door chimes when door opens】This wireless door chime can be a good reminder for you if you have toddler who try to sneak out of their bed room or help alert you the elderly with dementia who is trying to get out of the house. : This door entry chime can be used as a doorbell for your retail shop for your commercial to remind you when someone walks into your store, you will never miss any customers(visitors) 【Easy to Install】The door sensor chime and receiver are paired already,Just plug the receiver into standard outlet, tear the double-side adhesive tape of the entry alert chime and stick them to any door or window. [55 Music with Mute to 110dB]: The door chime for business/home has 55 chimes with 5 adjustable volumes. With LED indicators and memory function: Keep the previous set tune after re-plugging it 【Long Range & Expandable】The door chime wireless door sensor has 500feets far enough to cover every door in your house or store. And each door opening chime for business can be paired unlimited magnetic sensor, you can also pair different ringtone to each sensor, so that you can realize exactly which door is triggered Door Sensor Chime Installation method and pairing method Expert sharing vedio How do i change the sound? Arrow buttons to select your favorite sound, then press and hold the middle SET button for 6-8 seconds, near door magnet, after the didi sound will be paired with the door magnet successfully.Repeat the above steps for different door magnet pairings. Does light stay on while door remains open, or just while unit is chiming? The light stays on just while the unit is chiming. It chimes twice when the door opens and stops even if the door stays open. Can you set different chimes for different sensors? Yes, you can set different chimes for each sensor to know which door is open. Technical Details Color Black Power Source Corded Electric Compatible Devices Smartphone, Tablet Connectivity Technology Wireless Installation Type wireless DIY Alert Type Entry Voltage 120 Volts (AC) Control Method Touch Battery Cell Composition Alkaline Maximum Range 500ft Battery Life 1 years Noise Level 110 dB Sensor Technology Contact Sensor Batteries 2 12V batteries required. (included) Size 2 Sensors + 1 Receiver Black Material ABS Shape Rectangular Wattage 1 watts Special Features Easy to Install Usage door chimes when door opens for home door chimes when door opens for business Batteries Included? Yes Batteries Required? Yes Description Pile 12V
Product Description 🔔: Door alert for business has a back clip can be placed in the belt or pocket to carry around, without the restrictions of the socket more convenient to remind, when someone comes to visit, from anywhere in the house can hear the call, suitable for the elderly who are hard of hearing and friends with hearing problems (need to use batteries) 🔔[4 Modes for You to Choose]:CallToU Door Entry Chime flashing light has: 1,ringing + vibration 2,ringing + flashing light 3,ringing + vibration + flashing light 4,flashing light four modes to choose, flashing light silent mode, do not worry about the ringing will disturb the sleeping baby. LED light flashing, ringing vibration, you will never miss any visitors, in different scenes can choose different modes 🔔[55 Chimes & 5 Adjustable Volume]:55 kinds of short ringtones, including "Ding Dong", "Bell Ringing, Christmas Song" and other music styles. It supports five-level volume adjustment, the sound range is 0-110db, the volume is very large, and the whole house can hear it, suitable for various occasions. Silent mode that won't interfere with other devices in your home or neighbors 🔔[Long-distance and Anti-interference]:Door Sensor Chime working distance up to 1000ft in open and barrier-free environment, long-distance remote control, stable signal, no interference with each other, in Any place in the home can receive the signal without delay 🔔[Easy to Install]: Please install after pairing,tear the double-side adhesive tape sticK to any doors or windows.The wireless entry alert chimes when door opens for home is small and light so can be installed in any flat places Door Chimes, Wireless Door Open Chime/Alarm for Home Business Office Store 500 FT Range, 4 Simple Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering You can use it as door chimes when door opens for business You can use it for door alert/alarm for kids safety/demontia You can use it as a pool alarm and prevent someone walks into the private sphere You can use it as pet alert and make sure they don't runaway from home You can use it as a night entry alert chime which can alert you to the insecure door opening, and put off burglars from going any further. Unique 4 Alert Modes Ringtone+Vibration Ringtone+Flash Ringtone+Vibration+Flash Ringtone 4 Simple Ringtone DIDIDI Ding-Dong Hello Welcome Alarm Sound We believe our wireless door chime can meet all your needs above! Ringing + vibration + color flash This handheld receiver has 3 unique alert functions: ringing + vibration + color flashing, with a back clip design, you can put it on your desk or carry it with you, you can receive alerts immediately without delay, 0 false alarms, and no random ringing. Double-sided adhesive door magnetic sensor They are easy to install, the two parts need to be installed very close, when the two parts are separated by more than 0.4inch, it will send a signal, the receiver receives the signal and ring the bell; when the door is closed it will not trigger the signal. Battery powered receiver It is powered by 3*AAA batteries, you can carry it around with you, even when the power is off in your home, it can also work normally. We Have Paired Them Before Shippment,You Just Open and Play! Install the COntact Sensor Open the door to trigger the signal Receiver will ring+vibration+flash Deaf Doorbells CallToU Dog DoorBell Dog Door Bell Kit 2 Deaf Doorbells + 2 Call Buttons 2 Receivers + 2 Call Button Working Type Wireless Wireless Volume 120dB 5 Volume 4 Modes ✓ 55 Ringtones Technical Details Manufacturer CallToU Place of Business XiaoMing Deng,+8613960477124,room 605, building 2, hengdali factory,jinjiang city, Fujian Province Parcel Dimensions 9.7 x 8.6 x 7.7 cm; 230 Grams Batteries 2 12V batteries required. (included) Size 1 Receiver + 2 Sensors Power Source Battery Powered Included Components Battery door sensor Batteries Included? Yes Batteries Required? Yes Battery Cell Type Alkaline Warranty Description 1 year manufacturer Item Weight 230 g Country of origin China