FAST DUAL USB CHARGING PORTS - 24W / 4.8A 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. REAL-TIME MONITORING - Concise LED screen displays vehicles operating voltage (12V/24V) or the total USB charging output (5V/4.8A Max) in real time, fully controlling the whole charging process. The LEDs are bright enough to read the display without being a distraction while driving. SAFE ON THE GO - Intelligent circuit design protects against short circuiting, over-heating, over-currents, and over-charging. Charging stops when battery is full. COMPACT DESIGN - One of the industry's smallest USB car chargers for added portability, featuring two USB ports and an LED Display make it easy to access after dark. Input: 12-24V; Output: DC 5V 4.8A or 24W (Shared by two ports). One Year Warranty. MONITOR VOLTAGE & Amps: Monitor the voltage of the vehicle&#