The latest Bluetooth 5.3 technology, fast connection. Smoother and more stable high speed data transmission It won't disconnect even in crowded road or subway environments. Compatible with Android and iOS devices Enjoy 44 hours of continuous playback, up to 7 hours of playback on a single charge. Use with a charging case can increase continuous play time up to 37 hours. Compact size. Powerful 8 mm dynamic sound drivers and audio tuning technology, tight bass, crisp mids and highs. AAC codec can enjoy high-quality sound on iOS devices Adjustable EQ mode The sound can be customized via the omthing APP.Up to 6 EQ options (including default) are available to match music genres. listening It also allows you to create and save your own presets. Clear call sound intelligent noise cancellation, The microphone works with advanced DNN (Deep Neural Network) algorithm to reduce surrounding noise and accurately recognize your voice. Experience clear calls anytime, anywhere.