Amazon.com: NewFantasia Silver Plated Replacement Audio Upgrade Cable Compatible with Sennheiser HD800S, HD820, HD800 Headphones with 3.5mm 1/8" Male and 6.3mm 1/4" Adapter 6.7ft : Electronics
Adapter 6.3 mm jack to 3.5 mm jack | In-Ear, Noise-Canceling, Wireless, Bluetooth, Music; Entertainment, Travel, Sports - Sennheiser Discover True Sound
Ath M50x Headphone Cable | Ath M50x 3.5mm Adapter | Ath M50x Accessories | Cable Ath M40x - Protective Sleeve - Aliexpress
SENNHEISER HD599 Headphones 6.3mm To 3m Cable PLUS 3.5m Adapter Plug 743724648119 | eBay
Sennheiser Cable Adapter Female 1/4" 6.3mm to Male 1/8" 3.5mm Plug - Newegg.com
Sennheiser Adapter 6,3S - 3,5S - - Adapter jack 6.3S - jack socket 3.5S
Amazon.com: Sennheiser Genuine Adapter Cable Female 1/4" 6.3mm to Male 1/8" 3.5mm Plug for Headphones : Electronics
Sennheiser HD 560S Open-Back Monitor Headphones (Black) - 6.3/3.5 adapter included | Reverb
Amazon.com: 6.3mm 1/4" Male Plug to 3.5mm 1/8" Female Jack Stereo Headphone Audio Adapter (Pack of 10) : Electronics
HIXMAN CA301 Convert Adapter For AKG TA3F to Sennheiser 3.5mm Plug Wireless Bodypack Transmitter - CA301
Sennheiser 3.5mm Jack Plug Microphone Adapter To 4 Pin Hirose Audio Technica ATW | eBay
Sennheiser 3.5mm Mini Adapter Cable 506052 B&H Photo Video