Connectivity Technology: Wired/Wireless.Connectivity Technology: WirednOpen, circumaural dynamic stereo headphones for maximum wearing comfortnOutstanding soundstage with a warm and balanced audio reproduction. Frequency response (Headphones)15 - 40.000 Hz (-3dB), 8 - 44.000 Hz (-10dB)nSpecially-tuned, highly efficient drivers capable of delivering high sound pressure levels and a flat frequency responsenHighly optimized ventilated magnet system minimizes air turbulence and harmonic, intermodulation distortionnOpen-back ear cups facilitate transparent sound while showcasing cutting-edge industrial designn