This is ultra rare TOSHIBA HIGH END QUADROPHONIC HEADPHONE HR-40. You can switch it from 2 channel to 4 channel. This is a used item but is in good working order and condition for its age. Could use a little cleaning. Covered in a mottled brown, leather type material with no obvious signs of wear and tear/age. The thick comfort padding around the ear plates is still soft and comfortable. the material is no cracks. Each ear plate houses have 2 speakers, which provide the balance sound, externally they are labelled left/right and front/rear.Left plate houses the 2/4 channel switch. the cable has front/rear label too. Two plugs are all 6.3 mm / 1/4 phone connectors. The headphone has a adjustable headband and stop with two screws. Thanks for looking, please check out other items in my store.