Honfeiga 309D T1R1 Wireless Door Bells with Stereo Speaker, 36 Music, 280 M Remote Distance, USD4/pcs Only

タイトルまたは説明

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 , can be pressed more than **0, **0 times

CE, RoHS, FCC available

Clamshell blister standard package, customized package available

Specification

Battery operated for transmitter and receiver

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

Transmitter Size: *0x*0x*5 mm

Receiver Size:  *8X*7X**2 mm 

Transmitter Power :< *0mW 

Receiver Standby: <1mA

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

Receiver battery type: AAA battery