Wireless Doorbell No Battery Required Waterproof Self-Powered Door Bell Sets Home Outdoor Kinetic Ring Chime Doorbell Protection

1. No Battery Required: The transmitter has a built-in kinetic energy generation module, which does not need batteries or wiring. It is beautiful and easy to place.

2. Strong Signal: Long distance transmission oer 150 meters in the open area, strong penetration of signals such as external walls, wooden doors, steel doors and internal walls.

3. Waterproof: IP68 waterproof, not afraid of wind and rain. Rainy can also be used, saed and durable