I happened to get this model as a great deal, however, when I brought it home it wouldn't power on, even after trying my own battery that I knew worked. I ended up sending it back, but while I had it I noted that it had a single sheet of documentation, a cheap battery, and the unit itself felt like the plastic was too light, the buttons too flimsy. Instead of getting a replacement, I "upgraded" and got an iRiver unit instead, and after examination found it to be much better made, with much better doc. It cost me 50% more than this Sandisk player, but I guess sometimes you get what you pay for.