Material: ABS + PCStructure: shell material + PCBA (plug ultrasound)Input: DC12-24VOutput: DC 5V / 2.1ASecurity: multiple protection、 over temperature、 overload、 overvoltage、 short circuit protection!As long as the power cord plug into the car cigarette lighter port、 connect your phone、 tablet、 equipped with a USB cable to complete the charging. Or directly using Apple data cable、 you can think that the Apple device charging is completed. 3.4A super-high current、 full power can be a big iphone mobile phone、 but also for mobile phones and other digital products、 including the charge to use MP3、 MP4、 digital cameras and other digital products.Packag cInclude:1 Car Charger