WiseTiger&reg; Dual Port USB Car Charger, Auto Adapter for HTC,Motorola, LG , Samsung Galaxy S6/S5/S4/S3, Tab 3, Note 4/3/2, Google Nexus 7,and other Android Devices with LED Light Designed and Emergency Safety Hammer + 1 Cable for Android Devices Smart IQ Technology: Detects your device to deliver its fastest possible charge speed up to 2.1 amps. Input: 12V-24V DC, Output: 5V 2.1A . Intelligent Charging Control: WISETIGER car charger has intelligent charging circuit design for over-heat, over-current, over-charging protection short-currency protection etc. Dual universal USB port can be used for fastest charging of all Apple, Android and micro USB based devices. This charger is your best companion while your travel and ensures that your devices will always be powered when you need them the most. Charging automatically stops when battery is full. What you can count on: WISETIGER car charger is safe and reliable with high quality TPE material. Comes with 12 month Hassle Free Warranty and full support from WISETIGER, so you can purchase with confidence. For technical support related query and other questions please write to us at any time.WISETIGER car charger is certified by most recognized testing agencies in the world and proudly meets all standards for CE&FCC RoHS requirements.