Dynamic closed headphones delivers a neutral, high-resolution working sound. Its huge depth of detail passes through even in the loudest of environments. Irrespective of whether you are editing, playing or composing music, and regardless of whether you’re behind a drum kit, at the mixing desk, in a live setting or in the studio, the HD 300 PRO provides the details that you need for making good decisions. The high level of wearing comfort and efficient ambient noise attenuation ensure that nothing will disrupt your concentration. Perfect companion for your daily work due to long lasting materials and exchangeable cables with Sennheiser's established system connector. Impedance: 64 ohms. Frequency response: 6 Hz – 25kHz. Max. SPL: 123 dB SPL @ 1 kHz. Distortion: ‹ 0.1 % @ 1 kHz, 100 dB SPL. Sensitivity: 108 ±3 dB SPL / 1 V rms / 1 kHz. Noise cancellation: Max 32 dB (passive). Weight: 297 g. Package includes: HD 300 PRO headphones, 1 x cable (1,5 m with 3,5 mm jack), 1 x 6,3 mm adapter jack, manual. Colour: Black