Specification：

100% New

Material: High quality plastic

Input Voltage: 12V-24V

USB Output: 5V/3.1A(1a&2.1a)

Comes with Waterproof Cap
LED Voltmeter monitors your car battery
Cigarette Lighter Socket can be used for your own lighter
Charge does not affect the normal use of electronic device
Can charge MP3,cell phone,PDA and other devices with the appropriate USB cable

Package :
3 in 1 Cigarette Lighter Socket + Dual USB + LED Voltmeter