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.
Battery is included.
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.