Completely wireless The purpose of Powerbeats Pro earphones is to transform your training. The secure-fitting earhooks are adjustable for increased comfort and stability, and there are no wires to restrict you. You can take it to the next level with a reinforced design that resists water and perspiration. With full volume and track controls and a listening duration of up to nine hours, each earbud provides strong, well-balanced sound to support your training. Characteristics Water-resistant, Bluetooth, wireless, microphone included, and noise-isolating Product measurements in L x W x H 11. x 8 x 11 cm, or 4.33 x 3.15 x 4.33 inches Weight of the package: 2.53 pounds