AVID"s Classroom Packs make storing and moving your headphones easy and convenient. AE807 has a coiled cord, stereo/mono switch, permanent 3.5mm plug with a 6.3mm plug adapter. The carrying case protects the headphones during storage as well as keeping them clean and ready for use. 12 piece Classroom Pack available * Note! This version has no volume control. ITEM IS NOT RETAIL PACKAGED AND MAY BE IN POLY BAG.