Ultra-compact and Lightweight design for maximum portability—and to prevent any cup-holder obstruction. Supreme Safety: safety system provides complete protection for you and your devices, built in intelligent circuit design protects protect your devices against short circuiting, over-voltage, over-currents, and over-temperature. Universal Compatibility: compatible with all USB-powered devices including Quick Charge 2.0 and Apple phones & tablets, Such as iPhone, iPad, Tablet, Samsung Galaxy, Blackberry, LG, HTC, Sony,Nokia, External portable battery, Digital camera, MP4, GPS and more USB devices. Qualcomm Quick Charge 3.0 charges up to 4 times faster than conventional chargers. Double Up: Dual ports (QC3.0 + 5V/2.4A) pump out 30W power in total— can simultaneously charge two devices at highly efficient speeds,enough power for both driver and passenger to charge hungry USB devices at full speed.