This product consists of: Dune speaker, dun dune and USB plug cable sector. This enclosure is very convenient and provides a satisfying sound. First of all it works in bluetooth and allows all to pair Bluetooth devices you want (PC, smartphone, ipod ...). Its small size allows to place it everywhere and carry with you everywhere thanks to its wireless use. It is possible to use it as a hands-free kit which is convenient if you're in the shower, for example. The range between the speaker and the Bluetooth device to which it is paired is 10 to 15m. A satisfactory product.