Product information: Type: Headphone Headphone type: headphone Wearing method: head-mounted Headphone output audio source: PC computer Plug diameter: USB Plug type: USB Whether wireless headset: wired headset Is there a microphone: yes Sounding principle: moving coil Frequency response range: 85 (Hz) Impedance: 32 (Ω) Sensitivity: 50 (dB) Distortion rate: 2 (%) Wire length: 2.2 (m) Horn diameter: 50 (Φmm) Earplugs/earmuffs material: sponge Headphone cable material: copper Purpose: General purpose, ordinary earphones, noise reduction earphones, voice earphones, computer earphones, music earphones, HIFI earphones, game audio-visual earphones, gaming earphones Weight: 400 (g) Processing method: OEM processing Print LOGO: Yes Whether to support a drop shipping: support After-sales service: nationwide warranty Invoice: No invoice is provided Packing list: Yes Color: black USB version, silver USB version Size Information : Wire length:2.2 (m) Horn diameter:50 (Φmm) Packing list: Headset*1 Product Image：