Sennheiser Mx400 ii Black in-Ear Headphone Dynamic Sound
Speaker unit unit: * Type: open Cable: * Length: 1.2 m * Shape: asymmetrical (y-type) Plug: * Shape: Straight * Diameter: 3.5 mm Standard: * Sensitivity: 120 dB / mW * Resistance: 32 Ω * Frequency range: 55 ~ 15,000 Hz