I know the link I gave you says it’s in stock, but that’s an old link. Trust me, I’ve contacted Sandisk 3 times in the last month. The same goes for a lot of sites. I’ve purchased this item from a few sites recently that said they had it in stock when they really didn’t and they cancelled my order. So I haven’t been able to purchase one. Like I said, 2-3 months ago they were being sold everywhere, probably as a last push to get rid of them for good.
If you want to find out more, just look up the model, there is a ton of info, but to answer your question, it has volume, track, power, and I think play pause. Pretty basic.
*** Again, if anyone knows where I can actually buy one of these or wants to sell me their, please let me know (PM me).