The Altec Lansing Behind the Ear Earbuds are designed with flexibility and ease in mind. Complete with a certified IPX7 waterproof rating, these earphones can go underwater for any water related workout so don't be afraid to make a splash! The earphones come equipped with 6 hours to last your longest of workouts. Designed for comfort and secure placement in your ears with three sizes of Freebit ear tips, these earphones won't slip out while being active. With high caliber music performance, On-board microphone and song navigation/telephony/volume control buttons, control how your music plays while taking that important phone call.