If you have a penchant for all things retro, then the NGC Stereo Boom Bags from iWorld will definitely fit the bill. In addition to providing you with an instant time travel moment back to the 80s with old school designs, these bags feature integrated FM radio sets along with a pair of speakers to terrorize the rest of the folk sitting in the same train carriage as you. Alternatively, you can spare them the pains of Britney Spears by using the included 3.5mm jack. The sound quality definitely isn't much to shout about, but it ought to be enough for a casual day out with friends and family. Choose from "Tape Deck" and "DJ Mixer" designs, where either one will retail for £18.99.
Source: Pocket Lint