Product information : Mode of wearing: in-ear type Headphone output sound source: HiFi Plug diameter: 3.5mm Plug type: L-bend type Whether wireless headset: wired headset Sound principle: ring iron Frequency response range: 7-40000(Hz) Impedance: 32(Ω) Sensitivity: 108(dB) Distortion rate: 1 (%) Wire length: 1.2(m) Horn diameter: 10 (φ mm) Earplugs/earmuffs material: silicone sleeve Color: translucent black (without wheat), translucent black (with wheat), cyan (without wheat), cyan (with wheat), purple (without wheat), purple (with wheat), Packing list: Headphones *1