Headphones are light weight and very comfortable With large cushioning ear pieces. Fitted with female four pin XLR connector to mate with any user stations with male four pin on them. Unit is left ear only as boom mike does not swing all the way around.. Have sold many 100's of these and have Five stars… from Happy customers.. Units come with Six Feet of Cable Good for indoor production, Light duty but very Comfortable . With a dynamic element that delivers premium sound at all volume levels, Full Size Communication Headphones, Equipped with a noise cancelling microphone that eliminates excessive background noise for greater ease of use, it's one headset everyone should have in their arsenal. Large, closed, leatherette ear cups surround the ear for maximum isolation and increased comfort, and also offer high noise sensitivity and reduced sound distortion. . Frequency Response: 20 Hz to 20 kHz Impedance: 120 Ω Sensitivity: 96 dB SPL/1 mW Mike does not swing,, so "Left Ear " . Buyers please note that Mike element is directional and Label should be facing outward for best results