AITENG V026G Life Waterproof Battery-Free Wireless Doorbell, 1 Receiver + 1 x Transmitter, Receiver Distance: 130m, US Plug Filter-Safety Box Outdoor panel antenna: Install it

Outdoor panel antenna: Install it in a place where there is signal outdoors

Frequency response: DC to 8MHz

Dimensions: Transmitter: 7 x 4

strong confidentiality and convenient card swiping

AITENG V026G Life Waterproof Battery-Free Wireless Doorbell, 1 Receiver + 1 x Transmitter, Receiver Distance: 130m, US Plug Filter-Safety Box Outdoor panel antenna: Install it1. This is a wireless doorbell, but no more battery needed or worry battery runs out ! By pressing the push button, it converts kinetic energy into an electrical signal to ring your wireless doorbells. So no more worrying your push button runs out of batteries and no more hassling in buying awkward weird batteries to run your push button. You will always be able to hear your doorbells ring! 2. Do not need any battery or power line to charge the