Colorful earbuds have become increasingly popular with headphone manufacturers, possibly because of consumer demand for something a little more stylish than plain white or black. It's no wonder: Earphones are basically accessories that serve to pipe music to your ears, so they might as well be fashionable. Radius, a new Tennessee-based company pushing out Japanese-designed earbuds, is the latest entry into the burgeoning market of fashion-forward electronics. The company has three product lines, one of which is the $30 TruTune ultralight aluminum earphones. Read the review.