• BLUETOOTH 5.3 Compatible with Bluetooth 5.3 and equipped with an omnidirectional microphone, it delivers exceptionally clear call quality even in noisy environments such as subways and bus stops Equipped with a high-efficiency long-lasting battery, it allows up to 20 hours of music playback (playback time is the time during music playback and may vary depending on volume and usage environment) • Super Strong Noise Reduction ::: Automatically activates the optimal strength of noise cancellation suitable for your scene based on the surrounding noise level • Wired/Wireless Dual Use & Easy Operation: Supports diverse playback modes including wired and wireless, and achieves fast and stable connection through Bluetooth 5.3 technology No need to worry about the audio quality when talking or playing music It also supports TF card mode, allowing you to insert an SD card and enjoy music Comprehensive compatibility with various devices equipped with Bluetooth functionality, use Bluetooth pairing for the first use, and automatically pair with your smartphone for subsequent uses Use the control buttons with built-in microphone and ear cover for intuitive and convenient operation The button response is excellent, ensuring you never miss a wonderful moment while listening to music or enjoying a call • Package Contents: Main unit, 3.5 MM audio cable x 1, Type C charging cable x 1, Instruction manual x 1.