Features:  1.This smart wifi module with mini design suits for EU/UK wall switch box,and easily hide it into your hidden wall switch box of your traditional switch without any influences on your original decoration style to make it smart,giving your devices the ultimate power on/off smart makeover and convert most any compatible products to smart ones.More importantly,your traditional switch and this smart module can work independently under non-interfering mode. (Note:This module is suitable for rocker and reset switch.)  2.Differ in features from traditional common switch,this smart switch is able to be controlled by various ways alone with the best value like App control,touch control,voice control and even specially built-in RF433 frequency allows for another control via RF remote control switch with encoding 1527 without interference;achieve multi-control by associating to other smart switches in Smart Life App,besides its own module used as a 1/2 way circuit(2 switches control 1 light).  (Note:433 RF Remote is not included in the package,please purchase separately.)  3.Allows for hands-free voice and wireless remote control; compatible with Alexa and Google Home; remotely control devices with your smart phone, even when you're away from home;power off memory function available.  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.Control with your smart phone via Smart Life/Tuya app without a separate hub; a much easier pairing mode for adding the device with WiFi and Bluetooth connected.  Update:  1:New designed version with RF433 frequency.  2:Meantime suitable for reset and rocker switch.  3:Multi-control in a much easier way.  4:New pairing mode with WiFi+Bluetooth.  5:Power off memory function.    Specificaton:  Input Voltage : 90V~250V;  Max Current: 10A;  WiFi Standard : 2.4GHz;  App Name : Tuya Smart/Smart Life;  Size: 51x46x17mm;     Package included:  1 x WiFi RF433 Smart Light Switch Module