3.1A Intelligent Dual USB Car Charger on Cigarette Lighter with LED Display for iPhone, Samsung Galaxy Note, HTC, Motorola, Nexus, LG, iPad, MP3/ MP4,Android Smart Phone and Tablets (Silver) FAST DUAL USB CHARGING PORTS - Combined 3.1 amps; uses smart technology to ensure each device pulls the right amperage. Charger is powered by the vehicle's cigarette lighter. LED DISPLAY - Digital LED displays device's charging current and the voltage of the vehicle's car battery. High-quality and safe, with protections against overheating, over current, over voltage and overcharging. Charging will stop automatically when battery is full. Compatible with iPhone 6, 6 Plus, 5s, 5c, 4s, 4, iPods, iPad, Samsung Galaxy Note 2, Note 3, S2 S3, S4, S5, HTC One, LG G3, Most Android/Windows Smart Cell Phones, GPS, Tablets, and Other USB-charged Devices. Certified by RoHS, CE & FCC, high-quality fire proof material. No radio loss in your car or effect to Bluetooth or Wi-Fi devices. 30 days money back and 1 year warranty.