Type: WiredPlug diameter: 6.3mmPlug type: straight plug typeSounding principle: moving coilFrequency response range: 20-20K (Hz)Impedance: 32 (Ω)Sensitivity: 108±3 (dB)Distortion rate: 0.1 (%)Wire length: 1.2 (m)Speaker diameter: 40 (Φmm)