Each set of this SenQ USB outlets included 2 packs of USB outlet, wall plate ,screws in gift box. Charges two USB devices simultaneously without blocking AC Receptacles Internal chip provides most effective charging Eliminates the need for cumbersome USB adapters Two fast charging USB ports charge tablets and other power-hungry devices at the same time UL Listed and ETL Certified. Tamper-resistant shutters comply with 2013 NEC Code SenQ USB Wall Outlet with Dual USB Ports  The SenQ tamper-resistant USB Outlets lets you keep 2 AC outlets AND adds the capability of charging 2 USB devices at the same time. Don’t wait a moment too long for your devices to be fully charged and ditch those adaptors! SenQ USB outlet adapter with wall plate features smart 3.1A USB charging technology that senses and optimizes the charge provided for your electronic devices for fast, convenient and safe charging without the need for cumbersome USB adapters. The SenQ USB wall outlet is a fantastic upgrade for both residential and commercial environments!  Convenient  The output of the USB ports is controlled by a smart chip that senses the charging requirement of each plugged-in device and then distributes the optimal charge. This allows for fast charge times, without ever overcharging. The USB outlet Ports offer a combined 3.1 amps, significantly more than the 2.1 amps most other USB outlets provide. Another benefit of our charging station is eliminating the need for cumbersome USB adaptors. Now you can plug your USB cords directly into the USB ports. The vertical positioning of the USB ports enables the AC sockets to still be accessible.  Easy  SenQ’s USB Wall Outlet is very easy to install. They are designed to fit in a standard electric wall box and can be multi-ganged. Also, the receptacle is back and side-wired making it suitable for virtually all wiring scenarios. This device is compatible with virtually all rocker style wall plates; our standard wall plate is included for your convenience.  Safe  The SenQ Tamper-Resistant Wall Outlet provides a shutter component to help block foreign objects from accessing the electrical contacts and complies with National Electrical Code (NEC) requirements for tamper resistance. This feature helps guard against children inserting objects into the wall outlet. Warranty: 1 Year in USA