SpecificationBattery-Free Wireless Doorbell
No Battery | Wireless | Strong Signal | Energy Saving

Features

1. Require no batteries, can’t cause the water and soil pollution.
2. Never change batteries, more convenient.
3. Signal passes through doors, walls and floors. Transmission range is up to 280 meters in the open air. Even the receiver is on the fifth floor, it works properly.
4. The volume is big enough; you can hear it in any room.
5. Advanced “different code on same frequency” technology, never need to worry about the mutual interference with your neighbors.
6. 48 chime sounds, built-in amplifier, good sound quality makes it pleasant to hear.
7. Easy installation, the transmitters can be mounted with screws or double faced tape. The receivers plugs into any standard wall outlet.
8. Self-learning code system automatically adjusts to eliminate interference.

Description

• Communication Mode FSK
• Standby power ＜0.1W 
• Plug Type UK\US\EU
• Voltage AC100~240V 50/60Hz
• Distance 30~50 meters 
• Operating Temperature -25℃ to +50℃
• Lifetime 200,000 clicks
• Transmitter Dimensions Φ70mm x 15.5mm

No Battery

• The doorbell transmitter is embedded with micro generator which can collect energy when press.No battery inside.

Durable

• Embedded with micro generator = At least 160 batteries(Based on 20 Years)

Maintenance-Free

• No need to change the battery frequently, save money,and eco-friendly.

Waterproof

• A doorbell with no battery has strong waterproof function

Strong Signals

• Each press will send out three signals.The strong signals can pass through 3 walls and get strong feedback from every press.

20 Years Long Lifetime

• Outdoor transmitter has passed the pressing test with 200,000 clicks while the indoor receiver has passed extremely harsh aging tests.
• The doorbell is still working even in a variety of harsh environmental.

48 Wonderful Songs

• Each press will send out three signals.The strong signals can pass through 3 walls and get strong feedback from every press.

Refined Shape| Small Size

• Never affect the use of other electrical appliances
• Multiple Security protections
• Eliminate many Security Risks  .
• Lowest power consumption design,no heat,safe and reliable.
• Anti-Surge Anti-Lightning Anti-Static