The Sennheiser PMX 80 Eco is part of a series of sport headphones from Sennheiser that is packaged in bio-degradable materials to minimize the carbon footprint of the user. These headphones use a vertical transducer system on a neckband that floats to keep the headphones in place during a strenuous workout.

A single sided cable can eliminate cable tangles while the included clothing clip keeps the cable secure. The PMX 80 is sweat-proof and you can even rinse them under running water for a quick clean! The rear side of the neckband is coated with a reflective stripe only visible in low-light conditions for your safety.