Object Specifics - Brand: Bang & Olufsen - Model: U70 - Designer: Jacob Jensen - Type: Stereo headphones, orthodynamic (planar/isodynamic principle) - Period of manufacture: 1978–1984 - Country of origin: Denmark - Material: Aluminium, plastic, leather, fabric - Condition: Used – very good, complete with original box Description A genuine piece of Danish design history. The U70 was Bang & Olufsen's very first headphone, created by Jacob Jensen – the designer who defined the B&O look. As early as 1978, the U70 was featured in the landmark exhibition "Bang & Olufsen: Design for Sound by Jacob Jensen" at the Museum of Modern Art (MoMA) in New York. Technically remarkable for its era: an orthodynamic driver (early planar/isodynamic technology) in a semi-open design, delivering a natural, loudspeaker-like sound. The earcups adjust to the head both vertically and laterally via the distinctive mechanical "Head Control" and "Ear Control" sliders, and lock into position. Ultra-light at just 300 grams. This example is offered with its rare original presentation box featuring the iconic da Vinci–inspired artwork – complete with the foam insert and the fully legible technical data panel. A sought-after collector's piece for enthusiasts of B&O, Scandinavian industrial design and the Jacob Jensen era. Technical data - Principle: orthodynamic, semi-open - Frequency range: 16–20,000 Hz - Impedance: 140 Ω - Distortion: < 1 % - Power handling: 2 W RMS - Weight: 300 g - Cable length: approx. 3 m - Article number: 8964010 Included - Bang & Olufsen U70 headphones - Original presentation box with da Vinci artwork - Original foam insert - 3.5 mm jack plug with screw-on 6.35 mm adapter Condition - Headphones: very good, well-kept overall condition; fabric earpads fully intact and clean; headband and adjustment mechanism functional - Fully tested and in perfect working order - Original box: complete and structurally sound, artwork and printing intact; minor age-related storage/handling marks (light creasing/soiling) Shipping - Well packed and shipped tracked and insured