Check the listing for details. AKG K240 Studio Headphones. Color: Multicolor, Condition: New. Listed at 89.00 USD. AKG K240 Studio Headphones Features of the AKG K240 Studio Headphones include a removable cable and Varimotion technology for enhanced bass response. The headphones' integrated semi-open-air design incorporates a highly accurate dynamic transducer and an acoustically tuned venting structure behind the element produces a naturally open sound quality. The circumaural (around-the-ear) pads are designed for hours of wearing comfort, while the K240's steel-cable, self-adjusting headband construction and single-sided professional-quality audio interconnect ensure extended reliability in demanding professional studio applications. 55-ohm impedance. Features 55-ohm impedance Removable, serviceable cable Varimotion technology for enhanced bass Specifications Type: semi-open, circumaural Frequency range: 15Hz-25kHz Impedance: 55 ohm Sensitivity: 91dB/mW Power handling: 200mW THD: Connector: gold-plated, 1/8" stereo mini jack and 1/8"-1/4" adapter Net Weight: 8-1/2 oz. Listing and template services provided by inkFrog