new design 200m Batteryfree wireless doorbell - JIAQI13DB0509

The world's first batteryfree wireless doorbell.

No battery, no pollution.

No wires, no limits.

20 years service life.

200 meters in the open area.

Tech Intro

Battery-free wireless doorbell requires no battery and no wire. It uses the unique energy harvesting technology and ultra-low-power wireless technology with worldwide patents pending.

When users press the button, energy converting module inside can change the mechanical energy into electric energy. Then the wireless module of the button sends signals to receiver. The receiver receives the signals and plays music.

Features & Benefits

No battery. No wire.

Easy installation. Maintenance-free. Never need to change batteries, more convenient.

Waterproof.

Soak the button in living water for 4 month, it can work well. Never be afraid of rain and snow or other humid environments.

Work well at -40°C~+60°C.

Perfect for hot summer or cold winter

200 meters in the open area.

Signals can easily pass through walls, doors and floors.

Tested 150,000 mechanical cycles

If 20 operations a day, the service life will be more than 20 years.

Specifications