Designed for professional audio engineers and in-studio talent, SRH940 Headphones from Shure deliver accurate response across the entire audio spectrum for smooth high-end extension with tight bass. Superior transient response provides minimal distortion. The collapsible, lightweight design with premium padded headband offers superior comfort and portability. Two included detachable cables (straight and coiled) and a replacement set of velour ear pads ensure a long product life. Also includes a hard zippered travel case and a threaded 1/4'' (6.3) mm gold-plated adapter. FeaturesProfessional Reference HeadphonesAccurate frequency response delivers smooth high-end extensionLightweight, ergonomic fit with premium padded headband provide maximum comfort over extended periodsCollapsible design with 90-degree swivel ear cups for convenient storage and portabilityLegendary Shure quality to withstand the rigors of everyday useBayonet Clip securely locks cable into ear cupZippered hard travel case protects headphones when on the go or not in useSpecificationsSensitivity: 100 dB/mWlmpedance: 42 ohmFrequency Range: 5 Hz - 30 kHzCable Style: Detachable oxygen-free copperWeight: 11 oz