300m / 984.25ft Wireless Waterproof Remote Door Bell, One Receiver & One Transmitter - White Features: 300m / 984.25ft remote control range, with 36 ringtones and 4 levels of volume to meet your needs for different occasions Comes with the receiver, will not interfere with other equipment in your home or that of your neighbors, Ensures that you will never miss any visitors, even if you are several rooms away Convenient and easy-to-use design for a better user experience Simply get the bell plugged into the socket, tear off the tape of the sensor, and stick it on the door frame Waterproof design, it is a must-have accessory for home, office, store, etc Specifications: Brand: CACAZI Model: A99 Transmitter: With the indicator light, press the light to turn it on Music Alarm: 36 music options Transmitter Power Supply: 1pc 12V 23A battery (not included) Receiver Power Supply: AC 110V-220V Package Included: 1 x Receiver 1 x Transmitter 1 x Installation Tool Kit 1 x User Manual