This USB car charger is used to power and charge phones, tablets, media players, GPS systems, or any other device that comes with a USB cable. Input: 12V-24V DC Output: 5V 3.1A (2.1A + 1.0A simultaneous) Type: Car Charger Connectivity: USB Number of Ports: 2 Compatible Brand: Universal, For Apple, For Samsung, For Google, For LG, For Motorola Voltage: 12 V Compatible Model: Universal Material: Plastic Country/Region of Manufacture: China Model: Universal Power Capacity: 3100mAh