1. Through two independent tuning holes located in the front and rear cavity of the earphone, the air volume of the sound wave is controlled, the sound resistance of the earphone is corrected, and the expressiveness of the medium and low frequency sound of the earphone is greatly enhanced.
2. Ergonomic design, comfortable to wear
3. One-button wire control, easy to operate
4. 3.5mm universal plug to reduce the loss of information transmission
5. Frequency response range: 20Hz-20000Hz
6. Sensitivity: 109db
7. Rated impedance: 32 ohms
8. Line length: about 1.25m
