Features:-You can install the doorbell in kitchen, living-room, bedroom, etc.-With double side stickers at the back side of the remote button, very easy to install.-The special and pleasant of the doorbell has 38 bell songs included for all people to choose.-Designed a intelligent blue flash light

Features:-You can install the doorbell in kitchen, living-room, bedroom, etc.-With double side stickers at the back side of the remote button, very easy to install.-The special and pleasant of the doorbell has 38 bell songs included for all people to choose.-Designed a intelligent blue flash light at the receiver for the people who was hard-in-hearing.-Pretty streamlined appearance shows the elegant tastes of the host.-Energy saving design of environment prote ction.7-Adjustable volume-Completely wireless operation - no wires or cables required. Descriptions:*The work voltage of the receiver: DC3V ,Batteries Model: AA R6Px2 (Not Include)*Static electricity of the receiver <0.45mA(Ultra-low power, can extend battery life)*Work Frequency : 315MHz*Remote Control /Incept Distance >40m(in the open air)*Work Voltage of the Emitter: 12V(Battery Model: 23A12V) (Batteries Not Include)*Work Electricity of the Emitter <15mA

Dimension:Transmitter: 4cm x 7cmReceiver: 9.8cm x 5cm Note: The battery not included

Package Included:1 x Wireless Door Bell1 x Remote Control