Connectivity Technology: WirednDynamic linear-phase 7mm transducer delivers extremely wide frequency response (8-41,000 Hz (-3 dB), 5-46,500 Hz (-10 dB))nThe precision ceramic housing features attenuated dual-chamber absorber (D2CA) to deliver extremely low harmonic distortion even at high output levels (u0026lt; 0.06% (1 kHz, 94 dB)).n16-ohm impedance compliments portable audio devices.nErgonomic, oval-shaped ear adaptors for maximum comfort.n1.1 m symmetrical, oxygen-free (OFC) copper cable.n