Product: Smart Screen Wireless Doorbell
Quantity: two pieces
Color: Black
Suitable for: office, store, shopping mall, company, hotel, home, etc.
Description
- Stylish appearance and touch design.
- Easy to install.
- Ultra low power design, power saving and long use time.
- 52 polyphonic ring tones.
- 4 levels of selectable volume adjustment.
Specification
- Operating voltage: AC 90~250V.
- Operating frequency: 433.92 MHz +-280 KHz.
- Power consumption: 10 mW.
- Transmit power: 0dbm.
- Sensitivity: -110dbm.
- Volume: 10-110db.
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