180M Ultra Long Range Plug-in Wireless Digital Doorbell

详情

**-chord music (*2 musics to choose).
With flashing blue LED and adjustable music volume.
**0m super long distance remote control.
European style design.
*5 years wireless doorbell RF technology experience.
DIY system, attractive design, decoration, and practicality.
Digital system, anti-interference.
Power supply: **0 to **0V, **0 to **0VAC.
Operating range: Up to **0m (no obstacles).
Available plug: Two round pin, two flat pin.
Working temperatures: **0 to *0.C
Frequency: **5/**3MHz**0.5MHz
Quiescent current: *0 to **0mA
Working current: *0 to **0mA
Low power consumption: <5mW
Volume: >=*0dB
For transmitter:
Quiescent current: 0mA
Working current: <*0mA
Transmitting power: <*0mW
No wiring and installation
Packing: Blister, *8PCS/carton
Carton size: *4.3 x *8.7 x *5.8cm