1. TPE wire, bending-resistant and durable 2. 360 degree surround sound, front side sound control 3. Two keys wire control, high sensitivity, easy to operate 4. Oxygen-free copper core lossless transmission to reduce sound loss, the sound is transparent and clearer 5. Skin-friendly silicone earcups, comfortable to wear 6. In-ear design, long time wearing does not hurt the ear, not easy to fall off 7. Wearing mode: in-ear 8. Speaker impedance: 32Ω 10mm 9. Frequency response range: 20-20KHZ 10. Line length: about 1.2m