1 Self Generating: Press the doorbell with your finger, kinetic energy is converted to electricity, instantly transmitting wireless signals, do not need battery. 2 Long Range: Adopting 433MHz wireless signal, strong penetration, can penetrate 3-4 doors, receiving distance in open areas can reach 150 meters. 3 38 Melodies: Electronic doorbell with 38 melodies can be switched freely, the ringtones are melodious, 3 volume levels can be adjusted according to your needs. 4 IP44 Waterproof: The waterproof level of the transmitter reaches IP44, can withstand the harshest weather, safe and durable, has a long service time. 5 Multifunction: Not just the doorbell, can also turn into a pager, suitable for old people, babies and pregnant women who sleep alone, reliable to use. 6 Easy Installation: Easy to install, no battery and no wiring required, can be fixed with screws, low power dissipation, convenient for using, save your time and energy.
What's in the box
1 x Wireless Doorbell
