cu3ed How cheap is cheap? lol some are pretty decnt but are about 40 quid, think they just run on some batteries.
mrblonde don cant recommend these highly enough!! http://www.amazon.co.uk/gp/product/B001UEBN42/ref=nosim/?tag=hotukdeals-21 size of a squash ball when closed, USB charge gives about 8 hours use, can piggyback them one on another, i ordered 2 and with my iPod easily fill a big hotel room while getting ready to go out! Had rave reviews loads of places