Three USB port, charge three devices simultaneously while on the go with Poweradd car charger. Auto detect technology, auto detect each devices to provide the fastest possible charging speed. High-power, charge speed upto 25W / 5amps total with three ports(2.4A, 2.1A and 1A), ensure maximum charging speed for tablets and smartphones. Ultra small and trendy, with the incredible size of 2.5*1.6*1.0 inch - small but powerful. Exquisite appearance dotted with metal frame. Safety in use, built in safety microchip ensure your safety in use. Soft blue led indicator keeps light on once connected to the cigar lighter.