This product is environmentally friendly technology without battery without the power button.
Press the transmitter automatically generates mechanical energy into electrical energy， without using the battery， there is no need to connect the power cord， no longer need to transform the battery door， would not have to buy a battery to run around doorbell， doorbell life not only durable， but also to avoid contamination of the battery.
+ Easy
(1). No wiring， easy to install
(2) the transmitter without battery; Receiver convenient mains plug
+ Distance
(1)， 150 meters long transmission distance
(2) The wireless signals can penetrate walls and metal gate layer 3
(3) Service life up to 10 years
(4) to one of four billion low crosstalk points， do not worry about crosstalk
Personality +
(1). 38 polyphonic ring tones， built-in amplifier， the effect is good
(2) learning mode， the user can set their own pairing mode (one to one， one to many)
Press the transmitter automatically generates mechanical energy into electrical energy， without using the battery， there is no need to connect the power cord， no longer need to transform the battery door， would not have to buy a battery to run around doorbell， doorbell life not only durable， but also to avoid contamination of the battery.
+ Easy
(1). No wiring， easy to install
(2) the transmitter without battery; Receiver convenient mains plug
+ Distance
(1)， 150 meters long transmission distance
(2) The wireless signals can penetrate walls and metal gate layer 3
(3) Service life up to 10 years
(4) to one of four billion low crosstalk points， do not worry about crosstalk
Personality +
(1). 38 polyphonic ring tones， built-in amplifier， the effect is good
(2) learning mode， the user can set their own pairing mode (one to one， one to many)
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