Small, lightweight, simple, intuitive and cheap ....! a very good alternative to Apple.Il of products is recognized by the PC as a storage unit, drag the files and it is packed !!! And the sound .... agéablement surprised, it is good even with the original helmet, and just great with my Koss PORTAPRO, no breath which is rare in products of this price! Equalizer efficient, excellent radio reception, autonomy almost 16 hours, the clip offers a firm support, ideal for sports! And what about delivery, fast, very fast ..... Thank Amazon.com! I urge you to make your payments on this site ..... happiness!