Pool jam:

One niche market that has remained arid amid the flood of MP3 players sold everyday is that of aquatic acoustics. While joggers, climbers, cyclists and other fitness nuts have their iPods and a host of rivals to distract them during their masochistic bouts of physical exertion, the options for swimmers who want to listen to music are few.

Korean innovator iRiver is making a splash among the swimming fraternity with its Aquabeat MP3 player, which went on sale in Japan last month. Measuring a svelte 61×46×20 mm and weighing a mere 35 grams, the waterproof Aquabeat can be hooked to the strap of your swimming goggles and worn on the back of your head with hook-over-ear waterproof earphones. Done this way, the device looks like an attachment to your goggles and stays out of the way. Alternatively, it can be worn on your upper arm or attached to a strap on a bikini.