Summary: for a small speaker like this, it is pretty great sounding and loud. did a loudness test with my PSP-3001. having my PSP turned up all the way then playing a song, then plugging this speaker in all the way up, i would have to say it's about 3 times maybe even 4 times louder than my PSP. the Bass on it isn't too bad at all, wish it was a Slight Bit more bass, but it's pretty good.
Summary: Before I purchased this item, I had purchased a similar one for about $5. It was a better than my built in laptop computer speakers. However, I decided I wanted something better. This item is a whole lot better. The sound is surprisingly good for what it is. My only complaint is with the instruction manual. It has the smallest font that I have ever seen for a manual by far. It took two reading glasses, one worn over the other.