Voice Control: Compatible with Amazon Alexa (Echo/Dot/Tap), and Google Assistant. Pair Light Switch with Amazon Alexa or Google Home to turn your lights on or off with your voice. No Hub is required. Remote/App Control: You can control your household appliances via your phone whenever and wherever you are after downloading the FREE APP as long as there is a network. Suit for someone who can't move around very well and needs easy access to turn off the lights and turn on all the devices Timing Function: Schedule automatically switch power electronics on and off based on the specific time you set; Power saving eliminates wasteful standby power and prevents overcharging and overheating saving on your electric bills and extending product life. Group Control & Device Sharing: Create a group in the App, so you can turn on/off all the lights in the same group at the same time, And support controlling one device across many phones, you can share your smart switch with your family members .