Sonoff S-MATE Extreme Switch Mate

• Makes existing switches smart:Control your existing switches remotely using the eWeLink app.
• No neutral wire required:Works even in homes without a neutral wire.
• Compact size:Fits in most standard switch boxes.
• Long battery life:Up to 5 years.
• Multiple switch types supported:Works with rocker and push-button switches.
• Local control:Can be used with a Sonoff device with eWeLink-Remote gateway function for reliable local control (up to 50 meters).
• Smart scenes:Set up automation routines with other Sonoff devices.