I'd been looking for a handy wee set of earphones for a while, so £5 for a set of skullcandy earphones isn't bad. I know they aren't the best, but they aren't the worst either and for someone like me who is constantly losing earphones they are ideal.
Supposedly noise isolating with "unruly" base and crisp highs. I have not yet tried them out so I am unable to confirm this yet.
Found in the Maryhill Tesco Extra, loads in stock, different colours available. Does not appear to be on website, and not sure if national.