No soldier on record has ever lost a battle while wearing the G.I. headphones. Ever. Features; DJ Articulation Over Ear Studio Design Satin Travel Bag Specs; Speaker Diameter: 40mm Magnet Type: NdFeB Frequency Response: 18-20k Hz Impedance: 50 ohms Max Input Power Cable Type: TPE Cable Length: 1.5m Plug Type: 3.5mm Gold Plated