Pioneer Steel Wheels DJ-Inspired SE-MJ71-K Foldable Earcup Stereo Headphones w/3.5mm Jack (Black) Pioneer Steel Wheels DJ-Inspired SE-MJ71-K Earcup Foldable Stereo Headphones General Features: Black Aluminum construction Earcup design 40 MM Large diameter driver 1,200 mW Max input power 105 dB Sensitivity Deep bass 4-foot (approximant) OFC Litz cord 3.5 mm Gold-plated audio jack Portable folding design Headphone Specifications: Impedance: 32 Sensitivity: 105 dB Frequency response: 5 Hz to 28,000 Hz