Product Description : ​4USB ports provides plenty of power to charge 4devices simultaneously Automatically detects the attached devices and adjusts the USB output to ensure optimum charging speed Support 2.4A single USB output, fast and efficient charging Built-in intelligent management chip, protects overcharging and short circuit Small and light, add minimal bulk to your console Specification: Brand: Joyroom Model: JR-M401 Input: DC12V-24V Output: 5V 4.2A Compatible with: iPhone iPad iPod Samsung Sony LG HTC Huawei etc smartphones or tablets Brand : Joyroom Type : Car Chargers Compatible with : Mobile Phones