RGB Lighting Virtual 7.1 channels High-Quality Sound Driver Diameter: 50mm Comfortable headbanda Thick PVC Cable in Carbon-fiber look Sensitivity : 103db +/- 3db Channel balance : 5dB Phase: Same phase USB: Golden plated USB Cord length : 2200+/- 15%mm Mic Frequency: 100-10KHz Mic Dimension : Ø6.0×2.7mm Mic Impedance : ≤ 0.8-2.2KΩ LED current: ≤ 15mA 1 Year Imperion Warrant