ENER-J SHA5318 SMART Wi-Fi Power Strips with 3 Sockets & 4 USB 13A\r\n- The WiFi smart power strip is equipped with surge protector, over current protection,overload protection.- Effective absorb the sudden huge energy, protect your equipment and your home safety.- It also have a separate safety door to prevent children and pets accidentally touch the socket,keep away from danger.- Schedule your wifi smart power strip to automatically turn on or off anytime as pre-set time.