Compact Design: Small size square wall socket features 2 socket,2 USB port and 2 on/off buttom contral,provides 4 separate electrical outlets to power or charge your gadgets. Safe and Reliable: This socket with buit in smart chip technology recognizes connected device to deliver the highest and safest power for optimal charging and to prevent overcharging. USB Port: Convenience for you to charge without the adapter for devices with USB 1.1 / 2.0 / 3.0,more simple cleaver and keep space looks more tidy and neat. Comprehensive Protection: Overcurrent protect,overload protect to save the device battery using time; PC material shell protect your family and property in save. Easy Install: The USB charger receptacle is integrated installation can be easily installed in the wall of your bedroom,living room,kitchen,or any other room you may want to make power charging fast,easy and convenient.