Open-Ear ListeningN/AWith nothing inside or over your ears enjoy bud-free pain-free listening with headphones that stay in place.N/AN/A4GB of MP3 storageN/APowered for any playlist. Built-in storage allows for a library of up to 1200 songs ready to play at the touch of a button.N/AN/AWaterproofN/AA new kind of swimmers ear. An IP68 waterproof design withstands total submersion in up to 2 meters of water.N/AN/A8-hour batteryN/ADesigned to go the distance. Powerful battery enables a premium audio experience for up to 8 hours.