1. Plug: 3.5mm 2. Frequency range: 20-20kHz 3. Earphone length: 1.2m 4. Fits your ears comfortably 5. Good sound quality: The call quality and microphone are good. Even on noisy treadmills, you can hear each other clearly. 6. Suitable for various sports occasions, such as jogging, hiking, cycling, etc.
