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R16 1 For 1 Smart Wireless Self-Powered Hotel Home Electronic Call Doorbell(EU Plug White)
1. IP68 waterproof grade, can be exposed to the sun and rain
2. Waterproof, dustproof and shockproof, sturdy and beautiful body
3. The transmitter self-generating design, no battery is required, energy saving and environmental protection
4. The transmitter can be pressed around, easy to use
5. 4-level volume adjustable, 58 songs can be replaced
6. Volume range: 0-150dB
7. Power supply mode: transmitter self-generating design, receiver in-line
8. Frequency: 433.92MHz
9. Transmission distance: about 180m without interference
10. Dimensions: transmitter about 6.2 x 2cm, receiver about 9 x 2.3cm
