Flexzion Wireless DoorBell Kit with 1 Remote Control Push Button 2 Plugin Digital Cordless Door Bell Chime Receiver Battery Operated 80M/200FT Working Range Adjustable Volume Doorbell kit of 1 push button (transmitter) and 2 door chimes (receivers) supports a wireless range of up to 200 ft / 80 m Push button can be fixed to the doorframe with the screws, or attached to the wall using double-sided adhesive tapes Choose from 36 different chimes; Adjustable volume control to high, medium and low settings Built in anti-interference design; Weather resistant push buttons Easy to install, no wiring required