USB adapter and cable set specifically for the N-BOX JF3/4. The USB cable is approximately 60cm long. By connecting it to the navigation system, you can not only charge your device but also play music from your smartphone and videos from a USB memory stick. It can be installed very neatly in the same location as the original. I am selling it because I no longer use it. Operation has been confirmed. There are no instructions. Please purchase only if you understand this. NBOX USB cable