Campainha sem fio para exterior, sem necessidade de bateria, autossuficiente, campainha inteligente para casa, campainha de boas-vindas, kit de campainha cinética para jardim, plugue UE/EUA

-Product overview Thank you for choosing this wireless doorbell.It is easy to install and does not require wiring. You only need to broadcast the receiver into the power broadcast seat and install the doorbell transmitter where you need it. It can be easily achieved. Doorbell function.48 pieces of music (depending on different models), multi-speed volume can be adjusted independently， The transmitter and receiver can be freely paired to meet different needs. -Technical Parameters [1] Receiver working voltage: AC100-240V 50HZ/60HZ [2] Receiver power consumption: 0.5W [3] Operating frequency; 433 MHz [4] Transmitter power consumption: c10mw (Pinnoi antenna combination test, CE limit) [5]Transmitter battery: battery-free, self-generated [6] Volume range is adjustable; 25-85dB (0.5 meter decibel meter test) [7] Wireless distance: about 200 meters in open space and 20-50 meters in indoor obstacles. Note: There is no effect of natural separation from the body, no electricity, metal, etc., and the actual use has a certain angle difference, which is the normal limit point.