Wi-Fi Smart Wall Socket is able to turn power on/ off with divided control via ON/OFF Button, even 'Smart Life' APP wireless anytime from anywhere. One USB can turn power on/ off only via smart phone with no button on the face plate. No hub required, more user friendly and easy to replace the traditional sockets directly.1. Indicator Light: Power and Wi-Fi indicator lights on the face plate help you to know more clearly about the socket operation and make less confusion.2. Voice Control: Our smart wall sockets are compatible with Amazon Alexa and Google Home. Just control it via your voice to turn power on/off. No hub required and easy to install.3 USB Charger: One USB changer can control the power on/off via smart phone, no additional button on the plate. If the phone is charging while you are sleeping, do a easy step to turn the power off at the time you set via smart phone.4. Schedules/ Counterdown: You can turn power on/off on your own timetable, or set a countdown to turn power on/off from 1 min to 60 mins via 'smart life' app. Remotely check if the power is off or not, more safe and power-saving.5. Divided Outlet Control: Control both the top/bottom outlets and USB separately, it means you can control multiple separate electronic devices right from your smart phone.