Product Type: Wireless DC Digital Doorbell

Product model: HM-3718AC

Use voltage: Transmitter: 1/12V 23A battery/receiver: AC80V-260V

Product weight: 100G

Music selection: 32 chord music (3 volume adjustable)

Color choice: white black

Waterproof rating: IP44

Doorbell material: ABS material

Remote control effective distance: 150M