1.No neutral wire required for easier installation;anti-scratch tempered glass panel suits any home decor; A capacitance is required for normal work that is included in the package. | 2.Non-interference control mode; allows the switch to be controlled via app, touch control, voice control, and RF433 remote control with encoding 1527 (RF433 remote not included in package); each control method works independently. | 3.Compatible with Alexa and Google Home for hands-free voice control; can also be controlled via Smart Life/Tuya app anytime, anywhere; New features like ON/OFF relay status as remember last relay status when powered off and backlight switch setting. | 4.Take full control of connected appliances with timers, schedules and countdown (1/5/30 mins, 1 hour, etc.) with the app; share control with family and friends for added convenience. | 5.No neutral wire required and only for single pole circuit; only supports 2.4 GHz network; much easier pairing mode for adding the device with WiFi and Bluetooth connectivity ;includes full 2-year warranty and 60-day refund guarantee for complete satisfaction.