Voice Control - Work with Alexa, Google Home Assistant and IFTTT, control your home appliances with the smart plug by simply giving voice commands to Alexa or Google Assistant. No Hub Required, the smart power strip works with any Wi-Fi router without the need for a separate hub or paid subscription service. Control from Anywhere - Free "Gosund" app control the smart plug by your smartphone and tablet (iOS 8.0 or above/Android 4.4 or above). Only support 2.4GHz Wi-Fi network. USB Power Hub - Gosund WiFi Surge Protector features 3 USB charging ports, the total USB output is up to 3.1A. You can charge your cellphone, tablets, and other USB gadgets at the same time.