【Product parameter】Plug diameter: 3.5mmWith or without microphone: YesImpedance: 16Wire length: 2.1 (m)Headphone cable material: 5-core high-purity oxygen-free copper wire:Wearing method head-mountedPlug type: in-line typeSound principle: moving coilSensitivity: 115 (dB)Speaker diameter: 50 (mm)Headphone output source: PC computerWhether wireless headset: wired headsetFrequency response range: 20-20000 (Hz)Distortion rate: -31 (%)Earplugs/earmuffs material: memory sponge filled with protein leather case●Environmentally friendly materials: earmuffs with memory foam pads, skin-friendly materials, reduce heat and sweat, and are more suitable for long-term wear.●Transparent communicationThe flexible and bendable microphone uses cardioid directivity to record sounds from the area near your mouth. This helps to clearly capture your voice while suppressing background noise on the back and sides.