SONOFF Sonoff 4CH R3 Smart Switch Wifi Wireless Switch Remote Control (Compatible with Google Alexa) + 9 in 1 Precision Screwdriver Kit

Remotely control lights or connected devices via app 3 operating modes with auto lock, lock and tilt to even remotely control garage doors and roller shutters Supports programming a timer for devices to automatically start and stop to work Customize smart scenes to connect the device to the switch to trigger other devices Share permission to control devices to other accounts to control them together Check status ON/OFF devices on your mobile phone The On state allows users to set the On/Off/Keep state for the connected device before a power failure and make sure it remains in the intended state after power is restored. Specifications 4CHR3 Voltage Range: 100-240V AC 50/60Hz (DC: 9-23V) Max. Charging: 10A/2200W/gang 40A/8800W/Total wireless frequency: 2.4GHz WiFi Wireless standard: IEEE802.11 b/g/n 2.4GHz 2.4GHz (2400M-2483.5M); Security mechanism: WPA/WPA2 Housing material: PCV0 Gang: 4 Size: 14. 5 x 90 x 34 (mm) Operating Temperature (recommended): -10°C to 40°C (14°F to 104°F) Operating Humidity: 5% to 95% RH, non-condensing