Features: 1.Dual USB output with 5V/3.4A, 9V/2A, 12V/1.5A three output solutions, can charge most car accessories quickly. 2.With a color screen voltmeter, which can detect the use of the car battery at any time to prevent safety accidents caused by defective batteries. 3.Adopts ABS flame resistant material, environmentally friendly, and has very high safety factor, with terminals, convenient and simple to install. 4.Features multiple protection functions, input overvoltage, undervoltage protection; output overcurrent, overvoltage, protection, etc. safe to use. 5.Wide application, can be installed on car, motorcycle, atv, rv, suv, boat, yacht and other conveyance. Specification: Item Type: Car Charger_x000D_ Material: ABS Flame retardant and environmentally friendly material_x000D_ Shell Color: Black Shell_x000D_ Input Voltage: DC12V_x000D_ Fast Charge Output: 5V/3.4A, 9V/2A, 12V/1.5A_x000D_ Voltage Test Range: 11-14V_x000D_ Purpose: Dual USB Can be Used to Power most Car-Mounted products such as Mobile Phones, Tablets, Navigation and GPS;_x000D_ The Color Screen Voltmeter Can be Used to Detect the Voltage Usage of the Car_x000D_ Application: Can be installed on Car, Motorcycle, ATV, RV, SUV, Boat, Yacht, and Other transportation tools_x000D_ Protection Functions: Input overvoltage, undervoltage protection; output overcurrent, overvoltage, undervoltage, and short circuit protection; reverse connection protection; chip internal high temperature protection._x000D_ _x000D_ Wiring: "+" connects battery positive, "-" connect the battery negative