1. 58 music ringtones
2. 4-level volume adjustment
3. LED flashing reminder
4. Strong penetrating performance, the receiving distance can reach 200 meters in straight line
5. Through different button signals, let the host send out different ringtones to make it easier to distinguish the direction of the coming person
6. Press the power to generate electricity without using the battery at the same time. Press the button to generate electricity and transmit wireless signals.
7. Button IP44 waterproof design
8. Doorbell receiver size: 95x65x33mm
9. Doorbell transmitter size: 82x46x21mm
