Tunewear has launched the , an earbud cable management system and "fun strap" that doubles as a massage aid. Earbud cables are wrapped around Tetran's body of 23 spikes, while a squeeze opens the "mouth" to stow the earbuds themselves. Tetran harbors a removable ball-bearing style chain which transforms it into a "fun strap" for mobile phones or key chains. Squeezing Tetran in the palm of the hand or applying it to the neck, shoulder, back, hands, or feet produces a massaging effect. Tetran measures 58 x 61 x 49mm, and weighs approximately 25 grams. The plastic cable-winder is available in pink, yellow, green, or orange for $13.