Features:  - Work with Tuya ZB hub or Smartthings hub (need a handler).  - Voice control: The smart wall light switch is compatible with Amazon Alexa,  Google Home, simply use your voice command to turn on or turn off your light.  - APP Remote Control. Control your devices anytime , anywhere with the Smart Life App.  - Timer Control: Pre-set the multi working schedule. You can schedule it to turn on and off the light automatically to Save energy when lights are not needed or are left on by accident.  - Physical Touch Button: High end luxury design with Big physical button for push control.  - Led Indicator. When the lights are off status ,Led Indicator to guide you find switch easily.    Specification:  Power supply mode: No Neutral;  Rated voltage: AC220V-240V(50/60Hz);  Wireless standard: IEEE802.11 b/g/n;  Working frequency: 2.412-2.484MHz;  Product size: 119*75*28MM;  Encryption type: WEP/AES/TKIP;  Static power loss: <0.5W;  Working environment:  -20 °C 〜75°C;  Working humidity: <95%;  Controlling distance: no distance limitation;    Package included:  1 x Push Button Switch (1/2/3Gang ).  Note:  -This product requires a Tuya ZB hub or Smartthings hub enabled device to operate.  -Feel free to request support if any doubt about setting up your device.