1. Impedance: 32 ohms 2. Sensitivity: Single 3.5: 98db/ Single USB7.1: 105db 3. Weight: single 3.5: 360g (with packaging), single USB7.1: 400g (with packaging) 4. Material: artificial skin protein 5. Uses: computer headsets, game audio and video headsets, gaming headsets 6. Power: 50mW 7. With or without microphone: Yes 8. Sounding principle: moving coil 9. Speaker diameter: 50mm 10. Plug diameter: 3.5mm 11. How to use: head-mounted 12. Frequency response: 20Hz-20KHz 13. Headphone output audio source: communication equipment 14. Packing list: earphone + color box packaging + manual 15. Wide hearing range, accurate position recognition 16. 50mm stereo unit, effectively improve the output sound effect and sensitivity, and truly restore the original game sound 17. 360 noise reduction microphone, omnidirectional adjustment 18. Adjustable elastic headwear, with a degree of elasticity without pinching ears, and still comfortable for a long time 19. The big earmuffs are skin-friendly and comfortable, and they are still comfortable after long wear 20. Intelligent wire control, comfortable and convenient 21. Microphone size: 6.0x2.7mm 22. Microphone sensitivity: -38dB 23. Microphone impedance: 2.2 kiloohms 24. LED working voltage: 1.8~3.4v 25. Headphone jack: single 3.5: 3.5mm, single USB7.1: USB 26. Cable length: single 3.5: 1.6 meters, single USB7.1: 2 meters