When you DON'T use headphones, the 2.5" speakers sound like, well, 2.5" speakers

this little speaker works good and works off both 9V battery and 9V power adaptor

this little speaker works good and works off both 9V battery and 9V power adaptor

It is also more properly an effects pre-amp in that the tiny speakers are really limited.

That is more than enough to rattle your bedroom window with the right speaker!

it really needs to be used with a larger set of more powerful speakers in order to realize its full potential.

It has a headphone jack too, but it doesn't sound nearly as good as thru the 2" speakers