Using a novel design, iHome's new iHMP5 ($70) transforms from a pair of on-ear headphones into a set of stereo speakers, both designed to be used with any iPod or iPhone. Because the safe volume levels of headphones and speakers are radically different, the iHMP5 uses a speaker activating mechanism that requires the headphones to be rotated and joined with connecting pins, activating the two AAA batteries and amplifier contained in the headset --…
