Here I recommend one from aHappyDeal Company, a professional company focus on this kind of product.
Brief Introduction of Waterproof Environmentally Friendly Wireless Remote Control Doorbell for Homes/Offices etc
Main Features: - Unique appearance design
- No batteries, always need not change the battery
- Transmitter has excellent waterproof performance
- Can be used for about 150000 times, 20 years
- Can be used normally below zero 40 degrees Celsius to 60 degrees celsius
- 32 bit unique ID, anti-jamming and zero ring by mistake
- A transmitter can match multiple receivers
- Easy installation, plug and play
- Radio distance reach 200 meters
- Specifications: - Product weight: 0.16 kg
- Receiver size (L x W x H): 6.8 x 4.8 x 8.6 cm
- Transmitter size (L x W x H): 4.6 x 4.1 x 8.8 cm
- Package Contents: - 1 x Wireless Door Bell
... [Full description on aHappyDeal]
Supplied by aHappyDeal, Click Here to find the latest price.
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