Duttek 3.5mm Male to Male Audio Adapter, Metal Silver 3 Pole 3.5mm Stereo Jack to 3.5mm Stereo Jack Adapter, 1/8 Inch Male to Male Audio Headphone Jack Coupler Connectors - 2 Pack :
6.35 to 3.5 Headphone Adaptor by Keple Stereo Earphone Audio Plug Adapter AUX mini Jack to Jack Converter for Headphones Earphones Guitar Amp (6,35mm 1/4 Male to 3,5mm 1/8 Female) 3 Pack | Keple.com
USB to Jack Adapter 3.5mm Male Aux Audio Plug to USB 2.0 Female Converter USB to Aux Audio Converter Cable Adapter Car Stereo Cable, for Mp3 Players, etc(Car Need Decoding Function) :
OEAUDIO MULTI-PLUG Set of Interchangeable 2.5mm / 3.5mm / 4.4mm Jack Connectors - Audiophonics
Rca Jack 3.5mm Mono Plug Audio Adapter - 20 3.5mm Adapter Audio Plug 1/8 Male - Aliexpress
Incutex 2x audio jack adapter 3.5mm to 6.3mm headphone adapter audio plug adapter microphone converter stereo socket to headphone jack, black: Amazon.co.uk: Electronics & Photo
Lightning to 3.5mm Headphone Jack Adapter - Apple (UK)