Voye V009a Wireless Intelligent Doorbell

Work: wireless digital remote control, do not interfere with each other over long distances obstacle remote control Receiver Operating voltage: AC 220 AC Power: less than 2W Operating Frequency: 315MHZ Remote / receiver distance greater than 120m (open area) Power Source: 220V AC Transmitter Operating Frequency: 315MHZ Transmitter working voltage: 12V (Battery Model: 23A 12V) What's in the box? 1 x Doorbell Transmitter 1 x Doorbell Receiver 1 x 23A/12V Battery