"Useless for listening to music on iphone 3GS"2.0 starson by vicdumancas
Pros: Form factor - small and unobtrusive for working out.
Cons: Cannot control volume with iphone 3GS. The default volume is too loud. Lacks some bass. Sound quality so-so.
Summary: I think the problem is with Apple software so I can't blame the IS800 for not having its own volume control on the hardware since it would have affected the size. Another disappointment for Apple for not fixing this problem despite all the clamor on the web about this. Unfortunately I didn't get to read those reviews before I bought this. It is a deal breaker. It is going to be returned promptly.