Schedule Function: Set timer and countdown, create scenes, you can set timer schedules to automatically turn on/off your light, fans, or appliances according to your daily habits. For example, you can set the corridor lights to turn on when you come back home at night and to turn off when you leave home in the morning. Voice Control: Works with Alexa and Google Home, instead of reaching for switch button every time, you can easily turn on/off the home appliances by your voice command, no hub required, create scenes on Alexa or Google Home, very convenient especially when your hands are full of Stuffs. App Control from Anywhere: You can control light, router, fans, TV, coffee maker or any other appliance under 10A/1100W remotely with a single press on the mobile app Smart Life even you're away. No hub required, compatible with most wifi routers (only with 2.4GHz wireless network)It can let you DIY a lot of smart projects: smart lights, fans, garage door, humidifier, thermostat etc. Group Control: Create a group for all smart relays for one press control, one smart relay can be controlled by multiple mobile phones, share it with your family, everyone can control it easily. Perfect for hard-to-reach appliances & devices without ON/OFF switches.An essential accessory for your home automation system. Compact Design: This smart wifi module with mini design suits for 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.More importantly,your traditional switch and this smart module can work independently under non-interfering mode.