Dual USB port ,car charger and wall adapter comes with dual usb output design,support two devices charging simultaneously. 15W/3.1A output Car charger lightning charge your devices with the least time,intelligent electrical circuitry protection system ensure safety use. 10W/2.1A output Wall adapter design,use a 2.1A adapter for fastest charging time, twice as fast than 1A input.With the least amount of time fully charging your device. Compact and lightweight concept.Portable and small size convenient to carry with,ideal for home,office,travel and other indoor outdoor using