【Comfortable and Stable】: This running headphones Bluetooth is ergonomically designed, lightweight and still comfortable to wear for a long time. Soft hanging ear design is more stable, not easy to fall off when exercising. Hanging neck design is more convenient, no need to take off headset when pausing to avoid loss. 【Bluetooth 5.3 & 24H Playtime】: The gym headphones wireless feature the latest Bluetooth 5.3 technology for faster, more stable connections, longer range and fewer dropped calls. Wireless earphones offer powerful battery capacity with 24 hours of continuous playback on a full charge, no more power shortage worries. 【14.2mm Large Speaker】: Running earphones Bluetooth with microphone has a built-in 14.2mm audio driver to give you higher definition stereo sound and richer bass experience. In ear wireless headphones with sensitive button control, you can easily and smoothly switch between music and calls. 【IP67 Waterproof Headphones】: The noise cancelling earbuds with IP67 rated waterproof and built-in nano coating. When you're outdoors or playing sports, effectively avoid the interference of rain and sweat, and enjoy your music time to the fullest. (Not suitable for swimming) 【Wide Selection & Flexible Use】: JAYINE headphones come with 6 sets of earbuds (2 types, 3 sizes). Feel free to choose, wear them comfortably, and small ears can also be worn. The black sports headphones neckband have wide compatibility and can be connected to a wide range of electronic devices. Suitable for running, cycling, jumping rope, gym, et.