BANG OLUFSEN U70 HEADPHONES BOXED NEAR MINT PERFECT PADS FORM 1 2i A8 B&O CANS

In later years in a rather splendid box with a drawing clearly inspired by Leonardo da Vinci but fea turing the U70! Connecting the plug to the headphone socket of your Bang & Olufsen receiver automatically switched off the main.

eBay