This USB Cigarette Lighter charger automatically turns off when your device starts to overheat or tries to draw too much current. Thanks to its over-load, short circuit, over-current and over-voltage protection you can rely on this Cell Phone Car. Charger to charge all your USB gadgets worry-free. ABS+PC fireproof material is used For Your Safety. No affect to Radio, Bluetooth or Wi-Fi. Input: DC 12-24V,
Output: DC 5V 3.1A Max. It is aviable to print logo.