I like my PK1 more, so these are up for sale. These are a little too neutral for me, it reminds me of er4, which I don't really like. Money is good, but I am willing to try anything I haven't tried yet. Please PM me with offers for trade. Any closed can, IEM, earbud, portable amps, etc. No open cans since there's no place I can listen with them atm. If it's a full sized can, isolation is important; I am usually at a public library and I shouldn't disturb people. I can pay up to $50 more. Shipping from Korea.
The condition of OK1 is not that bad, but some tiny parts of letters have been erased. Apart from that, it is still solid, and functions well. It has been used for about 6+ months. Also, there is no package, you will only get the OK1 and the foams already on it. No tips, no IEM mode. No warranty provided, though I don't think it will break easily.
Price includes shipping worldwide via EMS. Paypal as gift or buyer pays the fee.