beyerdynamic DT 770 PRO 250 Ohm closed Studio Headphone for improved bass response, high frequencies are clear and differentiated, ideal for monitoring purposes : Amazon.ca: Electronics
Beyerdynamic DT770 Pro Closed Reference Studio Headphones 250 Ohm - Umart.com.au
Amazon.com: beyerdynamic DT 990 PRO 250 Ohm Open Back Headphones Bundle with Blucoil 6-FT Headphone Extension Cable (3.5mm) and Slappa Full-Sized HardBody PRO Headphone Case : Electronics
Beyer dynamic DT 990 PRO 250 OHMS open Studio Headphone|icegames
Beyerdynamic DT 770 Pro 250 ohm Closed-back Headphones with Calibration Software | Sweetwater