5V 3.1A Dual USB Car Charger Digital LED Voltmeter & Safety Hammer

Feature 1 Smooth and bright appearance design is adopted to prevent scratches effectively 2 Built in safety hammer function car charger can easily break the window safe with you around 3 Overvoltage overcurrent over mild short circuit protection more effective protection of your batteryand cell phone so that it can achieve the best job 4 Intelligent shunt technology can be charged to about 70 80 in 35 minutes 5 Dual USB intelligent output two mobile phones can be charged simultaneously Specification Color Black SilverMaterial Aluminium AlloyOutput voltage 5VRated input 12V 24VOutput interface USBRated output 3 1A Max Package Included 1 X Dual USB Car Charger