Battery-free wireless doorbell requires no battery and no wire. It uses the unique energy harvesting technology and ultra-low-power wireless technology with worldwide patents pending.
----you can use the transmitter anywhere you like
-----you can use the doorbell for more than 10 years
When users press the button, energy converting module inside will change the mechanical energy into electric energy. Then the wireless module of the button sends the signals to receiver. The receiver receives the signals and plays music/react.
1.Long distance transmission------120m
in open area
2.Penetrating power------three walls & iron gate
3.Long life------10 years
5.Environmental protection & low carbon
7.Endure low & high temp
The transmitter of our product use the ASA material, so it can be normal used in water. Besides, it can not turn yellow under the sun.
1. 25 Polyphonic tones
3.Private custom (one to one or one to many)
Power:AC240V(receiver), Self-powered(push button)
Temperature:-10~50degree(receive), -20~50degree(push button) Working range:
120m in open area RF Frequency:
433MHZ Sound Level:
80dBA@3ft(receiver) Power Consumption: