This Wireless USB Doorbell features a professional waterproof design, can penetrate through 3-4 walls, with a range of up to 150 meters in open areas. It has 3-level volume adjustment and 38 music options for personalization. Ideal for use in villas, apartments, offices, shops, warehouses, and more.
Features:
Wire-free, plug and play, easy to use.
Can penetrate through 3-4 walls, with a range of up to 150 meters in open areas, strong and stable signal.
3-level volume adjustment and 38 music options for personalization, customizable to your preferences.
Anti-interference and no false ringing, ensuring normal use.
Professional waterproof design, suitable for various places.
Specifications:
Colour: White
Working voltage: 5V (USB powered)
consumption: ≤0.25W
Working frequency: 433.92
MHz Operating temperature: -10°C~+45°C
Controllable volume: ≥50dB/1m
Remote control distance: ≥150 meters (unobstructed open space)
Transmitter battery model: CR2032
Transmitter consumption: