Your Original Wall Switch Still Works - The module works with the wall manual switch, so after you install the module in the switch box, the original mechanical switch still works.- App remote control, voice control , wall switch works. Voice Control App Name: Smart Life, or Tuya AppVoice Control: Google Home, Amazon Echo Alexa Countdown Timing Function It has countdown/scheduled/loop timers to control home appliance on/off automatically. And you can set timer schedules to maintain an easy life. Create Group in the App You can create group as you like, then you can manage your devices more efficient. Control Your Lights Anywhere App remote control your lights anywhere with your phone 2G, 3G, 4G network. Family Settings You can add family members in the APP and manage all the smart devices in your living room, bedroom, dining room, kitchen, study room, kids room, etc. Ultra thin compact design Dimensions: 46mm*46mm*18mm, can fit all the EU wall box. 1 Way Control(works with the wall switch) 2 Way Control(works with the wall switch) Specifications Input Voltage: 100-250VAC, 50/60HzOutput Voltage: 100-250VAC, 50/60HzMax. Load: 10AMax. Power: 2500WDimensions: 46mm*46mm*18mmApp Name: Smart Life or TuyaWireless Protocol: Wi-Fi 2.4Ghz(not support 5Ghz Wi-Fi)Works with toggle(forth and back) wall switchPlastic Material: Fireproof ABSCertification: CE, EMC, RED, RoHSPatented Product: YesProduced by ISO9001 Factory: Yes We have all the accessories you need in the box, you don't need to pay extra cost. What's in the box? 1 * Wi-Fi Smart Switch Module1 * Screwdriver1 * Screw Kit1 * Double-sided tape2 * Cables for Wiring1 * User Guide