Ebay Product Page – https://goo.gl/oei1jV
For $7.40 this wasn’t actually that bad. You don’t have any room for modification really unless you can find out what the pin out on the chip is and do more work than what is rational. So adding a another speaker is off the table. You could add a bigger battery, but that dousn’t seem worth it to me personally.
It is fairly loud and has better sound than my phone. Its quite good but not as good as the more expensive bluetooth speakers I have heard. A noisy environment would make it very hard to hear. Plus the thing talks, I don’t like electronics that talk to me.
Its nice to have something I don’t care about that I can use to listen to music without fear of damaging it though. If you want something really loud and with high fidelity look elsewhere ofcourse.