Hot Sell Wireless Door Bells With New Design, Stereo Speaker, 36 Music, 280 M Remote Distance, USD4/Pcs Only

详情

The wireless door bell adopts fashionable design and technology, melodies function and large effective range, easy to install and use, is a good choice for your house, villa, office, nursing room, etc.

Features

*6 high quality melodies for you choose

Adjustable Volume (4 levels), ****5dB

Long remote control distance to **0 meters (in the open air)

No error when signal transmit, no disturb your neighbors

Optical signal on receiver for elder or disabled people

Waterproof transmitter button, can be pressed more than **0, **0 times

Different plugs to meet different market standards (Euro/US/UK etc.)

CE, RoHS, FCC available

Clamshell blister standard package, customized package available

Specification

Work Voltage: AC **0V/**0V *0Hz/*0Hz (range AC ******0V available)

Work Frequency: **5MHz / **3MHz

Transmitter Size: *0x*0x*0 mm

Receiver Size:  *0x*0x*5 mm 

Transmitter Power :< *0mW   

Receiver Standby: <1mA

Transmitter battery type: *3A *2V (1 PC, alkaline, standby lifespan: *5 months)