Altec Lansing NanoBuds Sport will get you into the zone during any workout. The secure Altec Lansing Helix Wings keep your earbuds in place and the IPX4 rating means their sweatproof and water resistant. Anti-microbial protection repels 99.9% of bacteria and germs that may come in contact with. With a 5 hour battery life, you never need to worry about running out of music and the portable pocket-sized charging case gives you additional 3x charges for a total of 20-hours. Dual mic clear calling allow you to hear and be heard, clearly, from the office to home and everything in between.