Teenage Engineering TX-6 Ultra-Portable Mixer at Gear4music
Hosa GPP-359 Dual 1/4-inch TRS Female to 1/4-inch TRS Male Adapter | Sweetwater
MK HS Studio C Detachable cable for AKG HSC Headsets with 6.3mm (1/4") stereo jack. - NLFX Professional
the t.mix xmix 1202 FXMP USB – Thomann United States
Screw On Stereo Audio Headphone Adaptor - 1/4 (6.3mm) to 1/8 (3.5mm) - – NovaSoundTechnology
Amazon.com: Mobi Lock 3.5mm Plug to 6.35mm Socket (Pack of 2) 1/8 to 1/4 inch Stereo Audio Jack Adapter | Connects Devices with 3.5mm Port to Amplifiers, Guitar, Piano, Speakers & Mic