About Product:Time to market: the 2015-01-01 source category: spot type: headphones, headsets, headphones types: headset wearing way: headset output audio source: PC plug diameter: 3.5 mm plug type: type into whether wireless headset: wired headset with and without the microphone: there are voices: moving coil frequency response range: 20-2000 (Hz) impedance: 32 (Ω) sensitivity: 42 (dB) distortion rate: 2 (%) wire length: 2.5 (m) trumpet diameter: 40 (Φ