Beyerdynamic DT990 headphones +

Beyerdynamic DT990 Premium headphones, in new condition. These are audiophile-quality headphones, made in Germany, and this particular model is the 600 ohm version, which produces the best sound (but which may benefit from using an amplifier). Information from the official Beyerdynamic website: • Open back design • Strong bass and treble • Robust spring steel headband • Single-sided cable • Soft headband pad • Gold-plated 1/8