Doorbell Wireless Home Wireless Doorbell Wireless No Punch Doorbell Eurocode Receiver working voltage: 220V, working current 120mV (at 220V), static current 120mA (at 220V); 2) Power: 2W; 3) Music: 36 chord music to choose from; 4) Working frequency: 315MHZ; 5) Controllable volume: 25-80dB (4-level volume adjustment option); 6) Remote control/reception distance 100m (open area); 7) AC terminal (pin): round plug (European gauge); 7) Transmitter operating frequency: 315MHZ; 8) Transmitter working voltage: 12V (battery model: 23A 12V); 9) The working current of the transmitter is 15mA (based on 20 times per day, a high-quality battery can be used for one year); 10) LED indicator: press the transmit button, the LED indicator of the transmitter will be on, the transmitter will work, and the receiver will also send the command The beautiful music reminds you that there are VIP guests visiting, and the LED light on the receiver also flashes regularly with the music; 11) This doorbell has functions, which can satisfy customers to place external doors; 12) Temperature: - 10 ~50 Product details: 1) Receiver: length 9.5 * width 6 * height 3.4CM, transmitter: length 8.4 * width 6 * height 2.3CM; 2) Product weight: 108g; Single package specification: 10.3cm long * 6.3cm high * 7.8cm wide