?1-Year Guarantee? We have got the design patents and related quality certificates. We take full responsibility for our products and customer dissatisfaction. One Year warranty Guarantee!. ?Max boost Intelligent Circuit Design?Maxboost intelligent circuit design protects against short circuiting, Over-heating, Over-currents, and Over-charging. Charging stops when battery is full. ?Recessed Mount Installation?Size: Dia 2-3/8'' x H 1-3/16''. Recommend cut size: Dia 1-3/8'' x H 1-1/4''. Recessed mounting design for fix place installation. You can add this USB charger to any place that you want! Comes with green LED indicator light, make you find it easily at night!. ?Wide Application? 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. ?2 Ports High Speed Design?This USB charger comes with 2 ports of high speed. Compact design for added portability, featuring of Input:9-16V; Output: DC 5V 2.4A or 12W (two ports).