The AKG K 240 MK II has been used in studios and on sound stages worldwide thanks to its precision output. No matter whether you are mixing music or simply listening to it, the over-the-ear headphones feature Varimotion 30-millimeter XXL transducers that are designed to generate solid base tones as well as impeccable high-pitched sounds. Indeed, the audio bandwidth extends from 15 hertz all the way up to 25,000 hertz. The ear pads are replaceable to maintain comfort, and a cord spanning 10 feet gives you options on where to position yourself. Weighing in at a half pound, the earphones are equipped with both a 3.5-millimeter stereo plug and a screw-on adapter if you need to plug into a 6.3-millimeter jack.