Flexible Fit: 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.Get More Focus: 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.Pump Up Your Bass: Experience the pulse-pounding thrill of soundcore's BassUp technology, fueled by powerful 11mm dynamic drivers. Elevate your audio adventure to take your motivation to a new level.Everything-Proof Design: The sport earbuds' unique cavity design and soundcore exclusive SweatGuard technology create a submarine-inspired seal that protects the internal components against damage from water, sweat, and dust. Move without fear.Durable Battery Life: Sport X20 workout earbuds deliver a remarkable 12-hour battery life off a single charge, extending to 48 hours when using the charging case. With the fast charge feature, you can jump into your exercise routine without delay.