SOLD my SINE DX open-back headphones. Purchased new by me in 2017 these are in as-new condition, about 3 hours of use. Too tight for me. 10 of 10 cosmetic, 10 of 10 technical. Comes in original box with all original accessories and standard cable (NOT Cypher cable). Again, this is the limited open-back design. IMO better frequency response than the closed. Shipping to CONUS only; payment via PayPal, buyer pays all fees, I pay shipping. Please, no trade offers.