Vintage ~ Realistic Koss Stereo Headphones With Volume Control 1/4" Jack ~ Tested and Working ~ See pictures for more detail on this item and condition.
eBay
MMCX Pin Connetor Socket Nut Custom Made Universal Female Pure copper Gold Plated Built-in Hreaded for Koss and other headphones
Aliexpress UK
Manufacturer Part Number: 196726. Manufacturer: Koss Corporation. Product Type: Headphone. California Prop 65 Warning. This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
eBay
Extra Thick Earpads For Porta Pro PP KSC35 KSC75 KSC55 Sporta Pro SP Ear Pads For Gaussian For KOSS PP Headphone Case
Aliexpress UK
Have not tested these have no way to test them.
eBay
Extra Thick Earpads For Porta Pro PP KSC35 KSC75 KSC55 Sporta Pro SP Ear Pads For Gaussian For KOSS PP Headphone Case
Aliexpress UK
Tested & working, excellent condition. see all pics!
eBay
New 6Pcs Thick Foam Earpads Cushions Ear Pads for KOSS Porta Pro PP KSC35 KSC75 KSC55 PX100 PX200 Headphone
Aliexpress UK
VTG Realistic Koss Headphones Custom Pro Stereo USA 1/4" Jack Brown 70s Works Beautiful headphones in working condition. These headphones were staples for home audio music fans in the 1970s. Still working, listened to a few Zeppelin songs on them and they sound good to me. Soem scuffs and discoloration from age, and a little discoloration on the top rubber headband and ear pieces.
eBay
Replacement foam Ear Pads Cushions Cover for KOSS Porta Pro PP KSC35 KSC75 KSC55 headphones
Aliexpress UK
RARE VINTAGE GENUINE NEW 1975 KOSS K/7 K7 K 7 DYNAMIC STEREOPHONE STEREO HEADPHONES 113530 WITH JACK ADAPTER & ORIGINAL BOX 113530 MADE IN USA HEADPHONES ARE IN WONDERFUL CONDITION. TESTED - PERFECT BOX HAS LIGHT WATER STAINS PLEASE SEE PICTURES FOR DETAILS
eBay
10pcs Replacement Earphone Ear Pads Earpads Sponge Soft Foam Cushion for Koss For Porta Pro PP PX100 Headphones
Aliexpress UK
With its unique D-Profile design and precision tuned sound, the Koss UR23i Full Size Headphone is ideal for personal listening. Isolation from ultra soft cushions and closed back design brings you closer to the music.
eBay
Umelody U3 Bluetooth Headphones Hifi Noise Reduction Wireless Headphones in-Ear Foldable Portable Pc Gamer Man Same as KOSS
Aliexpress UK
Item new , I check it coz external box was damaged so I opened and checked if there are any damaged on item it self No damage and working perfectly Please check photos Communication Headset with Flexible Boom Microphone & USB Plug 18-20.000 Hz 8 ‡/ 2.4 m USB Boom Microphone Operating Range 100-16,000 Hz
eBay
Replacement Foam Ear Pads Cushions Cover for KOSS Porta Pro PP KSC35 KSC75 KSC55 Headphones
Aliexpress UK