Dual USB port, maximize battery life for up to two devices Compatible with any smartphone, gaming device, tablet, kindle, camera, etc Emergency seat belt Safety Cutter conveniently hidden by protective cover Safety Hammer contained in the tip of charger’s power contact Multiple Circuit Protection 24W / 2.1A USB Car Charger charges your favorite mobile devices including the iPad (max speed), iPhone (max speed), iPod, HTC, Galaxy, Blackberry, MP3 Players, Digital Cameras, PDAs, Mobile Phones. Double injected frame consists of a polycarbonate inner layer coupled with the flexible external molding of TPU (thermoplastic polyurethane) for a soft grip Maxboost Intelligent circuit design protects against short circuiting, over-heating, over-currents, and over-charging. Charging stops when battery is full. Dual smart USB ports quickly and easily identify yours mobile devices, to provide optimal charging efficiency. Compact design for added portability, featuring of input:12-18V; Output: DC 5V 2.1A or 24W (Shared by two ports).