75Hrs Playtime & Dual Power Display: Each ear bud offers up to 15 hours of listening time on a single charge, allowing you to enjoy a total of 75 hours of music by taking turns with the charging case. Wireless earbud feature a dual LED digital display that provides real-time charging case s remaining power and ear bud wireless bluetooth charging status and plan your usage accordingly. Say goodbye to battery anxiety! Bluetooth headphones support wired charging with a Type-C cable(included in the package). Fit for Movement and IP7 Waterproof: Designed with flexible and soft ear hooks, earbud wireless bluetooth running fit perfectly in your ears and stay focused on your exercise routine without worrying about falling out. To provide you with customized comfort, 3 multiple sizes of ear tips(S/M/L) are available. At the same time, wireless headphones has an IP7 waterproof rating, which can resist sweat, rain and minor water splashes during exercising, sporting, gym, cycling etc.