Features: 2.0 USB extension cable, stable transfer of data and charge. No drivers or power supply required. Special reserved holes for modification, non-destructive installation (please pay attention to check the size of the reserved holes). Single socket or Audio socket, extend the original car glove box USB socket to the reserved hole front modified socket through this line, which is convenient for use. With Charge socket, add a USB charging socket to the original car, which is convenient for mobile phone charging. The voltage-display function is the power supply-voltage of the input socket, the USB socket is 5V output, and the built-in step-down mode. Specifications: Material:Plastic Input voltage: 12-24V Output current: 3.1A Output voltage: 5V Size:Approx.25x22mm/0.98''x0.87'' Cable Length:Approx.25cm/9.84'' Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x USB Extension Cable