Rotatable Ear Hooks: The innovative ear hooks rotate up to 210° to keep Sport X10 comfortably and securely in position in your ears. Workout-Fueling Bass: The dynamic acoustic system produces sound with 2× more bass than standard drivers, while BassUp technology analyses the sound in real-time and pumps the bass up even further. SweatGuard Technology: Our exclusive technology effortlessly protects Sport X10 workout earbuds against corrosive sweat. IPX7 Waterproof: Sport X10 workout earbuds is built to withstand rain and even complete submersion in water, so not even a downpour can stop you from exercising. 8-Hour Playtime: A single charge will keep you covered for multiple gym sessions, and the charging case provides up to 32 hours of extra power. Clear Calls Anywhere: Sport X10 workout earbuds have 6 microphones and noise-cancellation technology to isolate your voice and remove background noise for clear calls. If you're outdoors, turn on Wind Noise Reduction in the app to prevent blustery weather from impacting the clarity of your conversations. Hybrid Active Noise Cancellation: Stay focused and in your zone by blocking out the noise of gym equipment and other background sounds. Turn on and off via the button on the earbuds or in the Soundcore app. Transparency Mode: Hear your surroundings and hear what people are saying to you, without removing your earbuds. Activate via the button on the earbud. Fast Charging: A speedy 10-minute charge gives you up to 2 hours of listening. Easy to Open Charging Case: Simply press the button on the charging case to open. Bluetooth 5.2: Get an instant and stable connection each time you connect your earbuds. Stereo or Mono: Listen via a single earbud or both whenever you need to.