Amazon.com: AKG Acoustics K240 Studio Over-Ear Semi-Open Pro Headphones, 15-25000 Hz Frequency Bandwidth, 55 Ohms Impedance, Screw-on Jack Combo - with H&A Clamp On Headphone Holder for Mic Stand : Musical Instruments
AKG K240 Studio Headphones - 885038026730
K240 studio | DIY-Audio-Heaven
AKG K240 Studio Professional Semi-Open Stereo Headphones 885038026730 | eBay