| Highlight the extreme stereo and high external noise barrier properties allow users to concentrate on making music. In addition, the rotation earmuffs and coiled wire, but it makes the mixing console, monitor the work easier.HD215 especially durable, with high-quality carrying case.Transducer principle: dynamic circle, closedFrequency response :12-22000HzImpedance: 32 EuroTotal harmonic distortion: less than 0.2%SPL: (@ 1KHz, 1Vrms) 112dbWeight: (without cable) about 280 gConnection: single coiled wire, 3.5m stereo jack and 1 / 4 inch (6.3mm) adapterFeatures: Rotating ear cups can be a single ear to listen | 
