Wireless Doorbell, Easy installation, Waterproof, Adjustable Volume, 58 Chimes, Colorful LED, 1000Ft Range, M520+F55, Black

[Work Out of Box] This wireless s for home has been paired before delivery. There is no need for wiring or electrician installation when using it since its installation can be completed within 1 minutes: plug the receiver into the socket, ready to go.

• [Long Range] This high-frequency electronic technology wireless remote control adopts the FM signal scheme, which has strong anti-interference features and one-to-one signal pairing. No need to worry about signal connecting wrongly with the next door. And the sensing distance can reach up to 1000Ft in obstacle-free environment.
• [Lead A Convenient Life]The has been updated with 58 songs (including merry christmas ringtone) and 5 levels of volume that can be adjusted. You can be add as required, choose 2 button with 1 receiver or 1 button with 2 receivers or 2 buttons with 3 receiver sets, etc.
• [Weather Resistance & Energy-saying] The door bell is made of high-quality ABS material, showing high performance in fire and flame resistance. working temperature:-4 °F -140 °F. IP55 dust proof and waterproof protection. The receiver adopts an optimized circuit design. The transmitter does not consume power without being pressed. Battery life:3 years.