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Ergonomic design We have analyzed thousands of ears and conducted more detailed tests on wireless earbuds to create ergonomic designs suitable for ears of various shapes and sizes. Even if you take the subway, exercise in the gym, hike, run, etc., you will feel comfortable all day long CVC noise-removing built-in microphone With the enhanced microphone, you can make the call clearer, and the microphone noise reduction technology can improve the quality of the call, so you can clearly hear your voice in noisy environments. 360 ° realistic audio 360 ° realistic audio plays sound from all directions around your head. Just as if you were recording with an artist at a live concert or in a recording studio. Sports headphones with high-quality sound The best fitness song for deep bass sports earplugs can inspire or relax yourself. It is also convenient to carry when exercising. Basic specifications: Bluetooth version: dual mode Bluetooth V5.0 + EDR Charging port: Micro USB Waterproof level: IPX5 Working range: 33 feet (10m) What's in the box 2 x wireless earbuds 1 x charging cable 1 x charging case 3 x spare earplugs (small, medium, large) 1 x user manual