Ultra-precise bass and crystal-clear trebleExtreme dynamic rangeHigh efficiency cobalt capsuleOne-sided spiral cable with oxygen-free copper wiresRound, rotatable ear cupsUltra-robust headband constructionCapsule diameter: 40 mmFrequency range: 20 Hz – 20 kHzMax. power consumption: 100 mWImpedance: 32 OSensitivity: +-113.5 dB @ 1 kHzCable length: 1 m (stretchable up to 2.5 m)Connection: Stereo mini jack plus 6.3 mm stereo jack adapter