eBay

This same headphone goes for $250 on amazonn check it out https://www.amazon.com/dp/B0778C9HQ4?th=1 but i am selling cheaper
Beyerdynamic DT 770 Pro 250 ohm Limited Edition Professional Studio Headphones
Closed over-ear headphones for professional mixing in the studio
Perfect for studio recordings thanks to their pure and high-resolution sound
The soft, circumaural and repalceable velour ear pads ensure high wearing comfort
Hard-wearing, durable and robust workmanship Made in Germany
Practical single-sided cable (3.0m coiled cable)

The true studio classic, ideal for enthusiasts and professionals alike

For decades now, professional users all around the world have placed their trust in our classic DT 770 PRO. These bench-mark setting studio headphones, available in three different models, boast extremely detailed resolution and very transparent sound.

The DT 770 PRO headphones is beyerdynamics closed-back model and offers maximum flexibility and detailed sound that you can always rely on.

Closed, diffuse field heaphone
'Bass reflex' technology for improved bass response
The soft, circumaural and replaceable ear pads ensure high wearing comfort
Comfortable fit due to rugged, adjustable, soft padded headband construction
Robust, easy serviceable construction as all parts are replaceable
Hard-wearing, durable and robust workmanship Made in Germany