DALI IO-6 Premium Wireless Over-The-Ear Headphone DALI IO is designed and developed in Denmark - build on custom solutions by DALI. The IOs class-leading custom 50 mm paper fibre cone creates the most natural, transparent and authentic DALI sound. With low distortion and colouration. Reproducing music exactly as the artist intended.With DALI IO headphones, users benefit from more than 35 years of experience designing some of the finest hi-fi loudspeakers in the world. The DALI IO-6 is designed and engineered by the same team and to the same b