100% brand new and high quality,Material: Plastic+Metal,Product Color: Black,Indicator light color: Red/Blue/Green,Works great as a replacement or extra dual usb charge in car switch panel,with red LED light Voltmeter,Over-heated,over-current,over-charging protection, charging will be automatically stop when battery is full, easy to use and install,Compact design 2in1 Car USB Charger and Voltmeter, great for charging and voltage checking purpose,Compatible with popular mobile devices USB 2.0,any device including digital cameras,PDAs,mobile phones and USB accessories,Input Voltage: DC 12 - 24V (The voltage will be displayed on the screen only if the input voltage is DC 12-24V ),Voltmeter Measure Voltage: 8-30V,Output Voltage: DC 5V,Output Current: 3100mA,Working Temperature: 80\u2103,With Cable included,Size: approx.38x38x50mm (including the size of pins),Quantity:1 Pc,Package includes:,1 Pc x DC 12V 24V 3.1A Dual USB Car Charger Voltage Voltmeter Motorcycle Marine Boat,