Features:
100% Brand new and high quality!
Dual USB ports， cigarette lighter can charge a variety of electronic products at the same time with USB.
Resistant to high current， high temperature and abrasion.
Have reserve protection.
You can check your car voltage anywhere anytime.
No need to open a hole， just fix it with screws on the surface.
Have covers， makes it waterproof & dustproof.

Specifications:
Material:Plastic
Color: Black
Operating voltage: 12V
Voltmeter Range: 6-33V
USB Output Current: 1A/2.1A
USB Output Voltage: 5V
Size: 15x5x7.5cm

Package included:
1 x 3 in 1 Car 2 USB Charger + Voltmeter + Cigarette Lighter Socket Panel
1 x SrewS