One Wifi Smart Switch Emylo Wireless Relay Light Switch, One Tuya Remote Control APP Remote Control: You can control the household appliances on/off on the ?Smart Life? app or "Tuya"through the WiFi Router. It?s no limit to the distance and time. The smart life app can download in App Store and Google Play. Voice Control: This hands-free voice control switch works flawlessly with Alexa, Google Assistant to manage your devices by using "Smart Life" skill in Alexa App with your voice. Timer Count Down Switch---- Set timer schedules to automatically on/ off home appliances based on your preferences. You can set countdown/scheduled/loop timers to create your situational life. Simplest Installation Method ---- Less than 10 seconds to wiring breaker with your devices. Contain safe, convenient, durable insulated terminals, you just need press and Insert cables to finish wiring. It is time to give up the way using screwdriver tighten /loosen screws. Widely application: eMylo smart switch is widely applicable to almost all kinds of household appliances and lamps,perfect for input wide voltage AC 90-250V lamp and appliances not over 10Amp.