Full-digital frequency modulation technology.
Simple appearance design,elegant and .
lower power consumption design,power saving and lasting
28 chord ringtones optional.
Indoor ringtones volume adjustable.
Outdoor transmitter IP68 waterproof level ,dustproof and sturdy.
Outdoor unit transmitter(Self-powered/No battery required)
Operating temperature:－20℃－65℃
Operating frequency :433.92MHz±200KHz
Power:0.1W
Indoor receiver(28 Ringtones volume adjustable)
Voltage Range:AC：110V-220V
Operating temperature:－10℃－55℃
Operating frequency :433.92MHz±200KHz
Volume:25－110dB