Libratone Track+ Wireless in-ears let you enjoy full, rich sounds with an innovative four-step adjustable noise cancellation system. The innovative CityMix Smart automatically adjusts to your environment and background noise so you'll never miss a beat. The ultra-light Danish design makes them some of the most comfortable and compact wireless ANC in-ears on the market. Sweat and splash proof so they can be enjoyed in any weather, they fully charge in under an hour to provide up to eight hours of rich, wireless music.