Bluetooth 5.1: The wireless Bluetooth headset is equipped with a Bluetooth 5.1 chip, which provides faster pairing and a stable and efficient wireless connection. It has a range of up to 10 meters and a stable connection. Whether you're at home, at the gym, or on the go, you don't have to worry about disconnection. Hi-Fi Stereo and CVC 8.0 Noise Canceling: Bluetooth headphones with full-range dynamic drivers complete of 10 mm. The in-ear headphones feature CVC 8.0 noise cancellation technology to help isolate external noise, ensuring you enjoy high-fidelity stereo sound while listening to music and taking calls. <p >ERGONOMIC DESIGN AND IP7 WATERPROOF: Ergonomic hook-shaped design makes the Bluetooth earphones fit your ears securely. The sports wireless earphone adopts IP7 supreme structure waterproof technology, which is effective against sweat and rain. 42 HOURS PLAYBACK AND USB-C CHARGING: Bluetooth headphones provide 5 hours of listening time on a single charge. Thanks to the charging case, it allows multiple recharges and offers more than 42 hours of battery life. Fast charging via USB-C and the charging case only takes an hour. Automatic connection: The Bluetooth headset is equipped with one-step pairing technology. When you take your Bluetooth earphones out of the charging case, they will automatically pair and reconnect to the last connected Bluetooth device, allowing you to use them easily. What's included: 1 sports Bluetooth headset, black, on-ear Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.