Wireless doorbell PCB circuit board

1. When the doorbell cannot be heard, the eye-catching indicator light will remind you;

2. 5-level volume control;

3. Waterproof button;

4. Easy to set up, no need for wireless;

5. Automatic learning code, easy DIY;

6. Working range: open air 300M;

7. 58 kinds of ringtones are optional;

8. Automatically save the selected ringtone after power failure.