Main Features:  1.Smart App Remote Control:Conveniently control your lights and the backlight indicator with the Tuya App no matter where you are.(Compatible with Android&iOS.)Also,you may easily share it with your family to control your lights together with Tuya App.  2.Hands-Free Voice Control:Compatible with Amazon Alexa and Google Home for easy voice control when your hands are not free,providing your smart life with much more convenience.  3.2/3 way:Switches control lamps in different position.  4.Customize Your Own Scence: One key controls multi switches. For example, set your home to automatically turn off the switches when you leave home. Save time.  5.Timer Setting:Take full control of your Home&Office lights intelligently with the timer feature on your App.  6. RF433 Remote Control: Can be easily controlled by RF433 controller.(not included the RF remote controller.)  7.WiFi&RF433 switch (a master switch )owns all the wifi smart functions .  RF433 Remote Control that should be paired to the main switch to turn on/off your lights as a RF433 Remote Control in another easy way,but it doesn't own any wifi smart functions,and cannot be used for controlling your lights alone.So even if there is NO WiFi, the 2 way function can still be realized between the master switch and RF433 Remote Control.     Parameter:  Working voltage: 100V-240V~, 50Hz/60Hz;  Working current: 10A Max (pure resistive load);  Wiring mode: zero live wire;  Load type: incandescent lamp 500W/channel, LED lamp 120W/channel, energy-saving lamp 200W/channel;  Product material: tempered glass panel + fireproof PC shell;  Use environment: temperature 0℃~40℃, relative humidity less than 95%;  Wireless standard: Wi-Fi IEEE802.11 b/g/n 2.4GHz;  Security mechanism: WPA-PSK/WPA2-PSK;  RF frequency: 433.92MHz;  Size : 86mm*86mm*34mm(height * width * thickness);  Color: White/Black;    Package included:  1 x Touch Switch(4 Gang)  2 x Screws  1 x User manual