Pros: small, cheap, bass boost & if ordered as 18v with a jumper can play any ohms cans
Cons: none that I can think of at the moment
great little tin of sweets - brings a new layer to familiar tracks when compared to straight from iPod. Nicely balanced sound with option of bass boost. Order the 18V for hi impedance cans and ask for a jumper to short the second battery terminal (making it a 9V amp) when listening to lower impedance cans. Only marked it down to 4.5 stars on quality because its an old sweet tin!!