TYLT is revolutionizing the car charger yet again. The Y-Charge takes the bullet style charger to a whole new level with it's compact and sleek design. Compatible with all phones (Devices) that charge via USB. The Y-CHARGE 4.2 design goes against all convention; its squared edges vs round, its solid insulated feel vs clanky hard plastic, its compactness vs bulkiness, and its directed USB ports vs stacked ports. SmartDetect Technology will determine if you have an Apple or Android device and provide optimized charging for your particular device for maximum possible charge rate. No more red X's, slow charge warning or compatibility issues.