Sonoff's 4-button RF (radio frequency) remote controller features a massive case and a push cover, and can be used to control learning code types of wall switches, plugs or relay switches. You can set it to remote control 4 different (RF-compatible) Sonoff devices or 4 different gangs/channels of a multi-gang device. Can also be paired with RF gateways / bridges such as Sonoff RF Bridge.
Its push cover prevents the buttons from unwanted switch.
Compatible with following Sonoff devices: Sonoff RF, Sonoff Slampher, Sonoff 4CH Pro, Sonoff RF Bridge 433, Sonoff T1 EU 1C, Sonoff T1 EU 2C, Sonoff TX T1, TX T2, TX t3 versions, SmartWise 5V-32V RF relays, ect.
Battery is not included. (Works with one 12V 27A battery)
Official transmission range is not published by the manufacturer, but tests indicate approx. 50-100 m distance (outside with no object interference).
Note: dynamic and rolling code devices are NOT compatible with this remote controller.