Cooler Master MasterPulse Over-Ear Headphones (CH-321), Headphone Driver Diameter 50mm, Headphone Frequency Response 20-20,000hz, Headphone Impedance 16ω, Headphone Sensitivities (@1khz), Headphone Input Maximum 180mw, Headphone Cable Length 2.3m Type A USB Cable, Headphone Connector USB Type A, Microphone Pick-Up Pattern Omni-Directional, Microphone Frequency Response 100 – 16,000 Hz, Microphone Sensitivity (@ 1khz), Microphone Type Non-Removable Flexible Microphone, Dimensions (L X W X H) 200 X 105 X 220mm, Weight 348g (Including Cable