Sport X20 workout earbuds come equipped with adjustable ear hooks that can be extended and rotated for a comfortable and secure fit. Up to 30 degrees rotation and 4mm extension, customize the position to fit you perfectly. Sport X20 workout earbuds deliver powerful noise cancelling, turning loud gyms into peaceful areas. Block out distracting sounds?from clanging weights to loud grunts. Manual adjustment and adaptive ANC keep you focused on your fitness goals.