Shure SRH840 – dynamic reference headphones with closed back design, 44 Ohms rated impedance, 1000mW maximum input, frequency response: 5Hz-25kHz, 102dB/V sensitivity, 3m removable jack cable with 3.5mm stereo mini-plug. 1/8″ to 1/4″ screw-on adapter. Weight: 318g (excluding cable). Includes bag, earpads and adapter. Suitable for recording and live applications.