Features:Adopt QC 3.0 fast charge technology, the charger can charge compatible devices up to 4X faster that usual chargersProtective cap provides good waterproof and dustproof performance, also protects internal circuit, effectively enhance it lifespanReal-timely monitor battery voltage and output currentCan automatically detect and deliver the best charging current for your mobile devicesMultiple safety protections ensure the safety of chargingCompact size, perfect partner for your car, boat or motorcycleSpecification:Input Voltage: 12-24VOutput: 5V/3AUSB Port: 1Voltage Meter: Digital displayMaterial: ABSMeasuring Range: 6-36VColor:black + RedPackage Includes:1 x QC 3.0 Charger2 x Insulated TerminalOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.