Wireless Doorbell ,ChYu Portable Wireless Doorbell with One Receiver,One Doorbell Push Button,38 Rings ,Battery-Free Doorbell Long Range Home Office Doorbell

Description

Specifications:
1.Advantage:No need any batteries.
2.Power Supply(receiver):AC 110/220V.
3.Working Power consumption:≤ 0.25W.
4.Transmitter Frequency:Around 433MHz.
5.Operating Range:Up to 300 feet(open space).
6.Doorbell kit Features:Wireless,Self-powered,Waterproof,Long range.
7.Assembly Details:Asembly required,easy to install,Just plug & play.
8.Detection Distance:Up to 165 feet indoors(depending on how many obstacles there are between the doorbell and the receiver.)

Packing List:
1 x Door Chime
1 x Doorbell button
2 x Mounting screws
1 x Double sided tape
1 x An instruction manual

Warning:
The functions of this battery-free doorbell may be affected under the condition of electromagnetic interference, installing it on full closed iron gates,metal doors,dry and humidity of the weather, signal shielding etc.

Cautions:
1.The operating distance will be changed depends on the around environment.
2.Please better not to be exposed to the rain or prolonged exposure to the sun or close to the metal objects.
3.Please better not open up the wireless doorbell if not a professional,because you may damage the electronic components in it.