OEM Chrome Digital Wireless Doorbell Chime and Intercom Systems

·  Digital wireless doorbell

·  48 different music

·  Operating distance is up to 150m on open air, 50-80m in the living house

·  Battery operation for the sender and receiver unit

·  Easily install and unique design

·  Beautiful voice can compare with the MP3

·  No interference with others

Specifications:

·  Receiver operated by 3 AAA batteries

·  Transmitter operated by one 12V/23A battery (included);