Sennheiser Professional boomset, 600 ohm, with cardioid, pre-polarized condenser microphone and Cable-II-8 (unterminated), HME26-II-600(4)-8 | Affinitech Inc.
Sennheiser HD 600 Open-back Audiophile/Professional Headphones | Sweetwater
Sennheiser HD 600 Headphones – Headphones.com
Sennheiser HD 600 Open-back Audiophile/Professional Headphones | Sweetwater