LOHOME (TM) Wireless Door Bell - 1 Remote Control 2 Wireless Digital Doorbell You can install the doorbells in locations, such as kitchen, back yard, bedroom, etc. With double side stickers at the back side of the remote button, very easy to install. The special and pleasant doorbell has several bell sound included for all people to choose. Up-date intelligent flash light design brings convenience to the hearing handicapped. Energy-saving design. Wireless digital remote control. Completely wireless operation and no wires or cables required.