•Open-Ear Design: The innovative ear-hanging type ensures a comfortable fit without blocking your ears. These headphones provide a secure and relaxed listening experience, allowing you to stay aware of your surroundings while enjoying your favorite tunes •DT3.0 Directional Transmission: Features advanced DT3.0 technology for precise and clear sound transmission. This directional transmission ensures that sound quality remains high, even in challenging environments, enhancing your overall listening experience with minimal interference •Hi-Fi High-Fidelity Sound: Experience superior audio quality with Hi-Fi enhanced sound effects and shock bass. These headphones deliver crisp, clear sound with deep bass, making them perfect for immersive music enjoyment during workouts or daily activities •Stable Bluetooth 5.1 Connection: Equipped with Bluetooth 5.1 for a more stable and reliable wireless connection. Enjoy uninterrupted music and calls with reduced dropouts and better overall performance compared to previous Bluetooth versions •360° Panoramic Surround Sound: Offers an immersive 360° panoramic surround sound experience. This feature enhances audio depth and spatial awareness, making your listening experience more engaging and dynamic •Noise Filtering and Clear Calls: Includes advanced noise filtering technology to reduce background noise, ensuring crystal-clear calls. Whether you're in a noisy gym or busy street, your conversations remain clear and uninterrupted Specifications: •Bluetooth chip: JL6973D •Bluetooth version: Bluetooth V5.1 •Bluetooth protocol: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gapga tt\rfcomm\sdp\ •Transmission distance: straight line ≥ 10 meters •Battery capacity (charging case): 200mAh •Battery capacity (single earphone): 28mAh •Music playback time: about 5 hours •Talk time: about 5 hours •Charging time: about 1.5 hours •Charging interface: Type-C, DC5V 400mA •Speaker: full-range speaker 1712mm •Waterproof level: IPX4 Package included: •2 x Bluetooth Earphones •1 x Charging Case •1 x Charging Cable •1 x English and Chinese User Manual •Other items not include