Wildomar, Calif. - (October 6, 2009) – Ultrasone Inc., distributor for German headphone manufacturer Ultrasone AG, is proud to announce the release of its flagship HFI Series headphone – the HFI-2400. With the debut of the HFI-2400, Ultrasone has designed an eye-catching black and silver, open-backed headphone that satisfies the highest of listening [...]









