4200 This is a brand new, unopened, domestic genuine KSC75 open-ear clip-on headphones, a masterpiece from KOSS. It's lightweight and comfortable to wear, and its open-air design provides natural, expansive sound. It has excellent high and mid-range clarity and is highly regarded as a model with excellent cost performance. This product is very popular in the United States, and with the recent retro boom, many people are swapping out the drivers for different sound characteristics than the Porta Pro from the same company. While the Porta Pro emphasizes bass, the KSC75 is a model specializing in mid and high-range resolution, so customizing the KSC75 driver to be used in the Porta Pro is popular. If you have any questions or would like additional options, please feel free to comment. ・ Domestic genuine product (covered by a lifetime warranty) ・ Brand new, unopened ・ Immediate purchase OK ・ Will be carefully packaged with cushioning material and shipped in a cardboard box Personally, I don't agree, but there are many audiophiles who consider the Porta Pro to be similar to the HD650 series and the KSC75 to the HD600 series. This is a classic model that people say they can't live without once they try it. Please consider this opportunity! ======================================== ・ Returns and cancellations are not accepted ・ Bulk purchases, dedicated listings, and various event support are possible (category changes, relisting, etc.) ・ If you purchase with other items, we will discount the shipping cost. Please comment if you wish. ・ We are also listing on other platforms, so we may delete the product without notice if it sells out. #koss #ksc75 #portapro #porta #pro #retro #style #wired #on-ear #earclip #headphones #headphone #retro #retroheadphones #retroheadphone