wireless remote control door bell
Detailed Product Description
1).Low power consumption. .
2).Water proof transmitter:IP44 degree.
3).Power supply transmitter: DC12V (1pc 23A battery)
4).Power supply receiver:AC 220V~/50Hz or DC 3V ( 1.5VAA x2).
5).Transmission frequency: 433.92MHz
6).Remote control distance: 50Meters (free area)