- Cable length: 1.2m 2. Socket type: USB-C/Type-C, 8 Pin, 3.5mm 3. Frequency response range: 20Hz-20KHz 4. Sensitivity: 105-108dB 5. Wire-controlled operation, responsive and easy to operate. 6. Widely compatible, antioxidant plug. 7. Newly upgraded sound effect processor, the sound is high fidelity. 8. It can be worn on the back, light and close to the ear, and it is not painful to wear for a long time. 9. 10mm titanium composite membrane speakers are used to restore HiFi sound quality.