A good product overall, compact, and very readable screen menu, but watch the platic shell scratches very quickly. The rotating wheel navigation is very effective. In terms of accessories there's not much, the proposed crystal cases or rubber denatures the product and are not really very smart. In terms of docking station - nothing - everything is done for IPOD. I realize that sometimes it is moving in the range reading, we must re-select the title to read it from the beginning. There is no grip to fix the system with a helmet around the neck, in my case I tinkered, the Case tissue provided in the box to secure it during transport. A standard cable with a mouthpiece like external hard disk entry as does the conccurents would have been better. MP4 video playback is satisfactory given the screen size (ok for Youtube clips). use with a mini sd card 4GB work properly. The Equalization brings nothing, just the normal mode is satisfactory. Playlists, in my case I have not figured out how to do more.