Product Details

NEW PRODUCT BATTERY-FREE USB DOORBELL

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 will convert the mechanical energy into electrical energy. The wireless module of the button will send signals to the receiver, which will receive signals and play music.

Advantages of battery- free USB doorbell

1.battery-free

2.self-powered

3. waterproof transmitter

4. working range in the open area 80 meters

5. convenient to use

6. 38 phlyphony ring tones

7.USB port receiver

Specifications of battery-free USB doorbell

U2	Chime (receiver)	Button( transmitter)
Power supply	DC 5V	Self powered
Operating temperature	-10°C~50°C	-40°C~ 50°C
Range ( open field )	80m(open area)
RF Frequency	433MHz
Sound level	80dB@ 3ft(1m)
Power consumption	100mW
waterproof		Yes
Operating Forces		10N
Dimension]	783518mm	794433mm
Weight	23g	55g
Ring tone	38 polyphony ring tones

Pictures of battery- free USB doorbell