Description: Rated voltage：85-265V Electrical lifespan：100000 times Working temperature：-20~55° Shell material：ABS+PC Special functions：Timing function wifi类型：2.4Ghz     Features: 1.APP remote control,any time and any place,remote control light switch   2.Voice control,a simple voice command to control the light switch   3.Timing·agenda,countdown function, and maximum customization of your life   4.Status memory function   5.Group Control,set all of your smart switches in a group by Tuya app. Then one-click to turn/off all of your appliances or lighting by smartphone.         Package Included: 1 * (1 on/off switch)