I bought it as a little guitar and mic amp. Plus, I also use it as a bluetooth speaker. It does all of this pretty well and the treble, bass and reverb allow you to create your wished for sound. It would be even cooler if the bluetooth input could be modified similarly, but it can not. The mic is significantly less amplified as the guitar, which implicates that you cannot play your guitar very loudly and at the same time hear your voice properly. For my way of usage, this is a minor issue.
Also works perfectly for karaoke's!! Though, when a song with a deep bass is put too loud, it starts to crack a little.
Overall a lovely thing