This Does Not Commute

WITHOUT headphones, portable CD players are next to useless. Sure, you can connect them to a hi-fi or powered speaker system, but then they're no longer portable. The problem is that building loudspeakers into a CD portable is not easy. First, you need speakers that are large enough to reproduce the entire music spectrum, yet tiny enough to fit into a CD portable. Then there's the matter of squeezing in an amplifier powerful enough to drive those speakers. Finally, there's the difficulty of ensuring suffici