VOYE V022A Home Music Remote Control Wireless Doorbell with 38 Polyphony Sounds (White)

1. Work mode: wireless remote control 2. Receiver operating voltage: DC 4.5V (3 x AA batteries, not included) 3. Power: =80m (open area) 6. Transmitter operating frequency: 315MHz 8. Transmitter operating voltage: 12V (battery model: 23A, included battery) 9. Transmitter operating current <=15mA 10.LED indicator: press the launch button, the LED indicator of the transmitter is on, the transmitter works, and the receiver receives the command and sends 11. Material: ABS 12. Transmitter size: 7.3x4x2cm, receiver size: 11x6.6x3.1cm