Wireless Doorbell Chime with 32 Voices for Choice

1.Remote control range up to 100meters in the open area 2.32melodies for choice.  3. 2-pin round plug/2-pin flat plug/3-pin British plug4. Receiver: AC110V/AC220V/DC3V, Transmitter: 12V 23A(included)5. with CE Frequency315MHz±0.5MHz433MHz±0.5MHz Active pressure wave(receiver) ≤-57dbm Negative pressure wave(button) ≤-36dbm Power supply(receiver) 2×1.5V AA battery Power supply(button)1*12V 23AAlkaline battery Working power consumption ≤5W Transmit power