App Support: Free iOS and for Android mobile Tuya APP/Smart Life APP. Sync Status: Real-time device status provided to App. Remote ON/OFF: Turn 4 electrical devices on/off remotely from anywhere. RF Remote control: Turn on/off by 433MHz RF Remote indoors. 3 Working Modes: Switch among interlock/self-locking/inching modes. Independent control: Control each gang separately in Tuya APP/Smart Life APP. Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electric curtain, Garage door opener,Motor,etc. Timing: Supports 8 enabled countdown/single/repeat timing tasks to turn on/off at specified time. DIN Rail Mounted: Great for industrial control. Voice Control: Compatible perfectly with Amazon Alexa, for Google Home Share Control: Control your smart home together with your family. Colour:As Shown Material:Metal + Plastic Package Contents: 1 * smart switch module(with shell) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store