Onkyo Maiden Audio ED-PH0N3S On-Ear Headphones Balanced for clean highs and lows but also for the all important space in the mid- range to best display the dynamics and complexities of rock and metal music 40mm drivers made of titanium- one of the strongest, lightest metals on earth gives an ultra clean and highly accurate sound High performance cables of multi-strand conductors shielded with a fabric cover to further protect the signal Developed by Steve Harris, Founder & Co-Producer of Iron Maiden, and Onkyo engineers 232 Days of Development, 22 ONKYO Engineers, 60 Drive Unit Trials, 34 Sleepless Nights, 14 Cable Set-Ups, 5 Re-Workings, 1 Steve Harris