Aurvana X-Fi Noise-Canceling Headphones - Headphones & Headsets - World's first noise-canceling headphones featuring X-Fi technology.

Technical Specifications

Feature	Description
Drivers:	40mm Neodymium magnet
Frequency Response:	20Hz-20kHz
Impedance:	450ohms(on), 72ohms(off)
Sensitivity (1kHz):	105dB/mW(on), 95dB/mW(off)
Noise Reduction Level:	20dB
Cord Length:	1.5m detachable Oxygen-Free Copper cable
Input Plug:	3.5mm gold-plated stereo miniplug with 6.3mm (1/4”) stereo adapter
Weight:	245g (without packaging)