Altec Lansing introduces earphones to match your active lifestyle. With a built-in fitness tracker, keep track and monitor your steps, calories and distance! 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 10 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 like the rest of them when you are staying active. With a 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.