NA Wireless Doorbell 300M radio transmission distance

start of prefixes

52 Optional stereophonic music
300M radio transmission distance
Extreme low-power consumption
Four-level adjustable volume
Exquisite exterior design
Rated voltage: AC 110-220V 50/60Hz
Volume: 20-85dB
Power consumption of transmitter: <10mw br=””>
Working frequency: 315MHz – 433.92MHz

end of prefixes

start of suffixes

end of suffixes