Cheap and Cheerful Suitable for DIY enthusiasts to make audio projects. It works well with inexpensive amplifier projects, it's also great for DIY project boxes and repair 3.5mm jacks and many other devices that use a stereo connection.
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Type-C to 3.5mm Headphone Adapter, 3.5mm USB-C Audio Converter, Suitable for Smartphones and Laptops, US 3.5mm Phone Connector
Aliexpress UK
Simply place it beside or under your pillow and plug it into your MP3 player, smartphone, tablet, radio, or other compatible device. Mini 3.5mm Pillow Speaker – Portable Wired Sleep Audio Speaker. MP3 / MP4 Players.
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1M 3.5mm Mono Male To USB Power Cable Jack 3.5mm 2 Pole To USB Charging Cable USB To 3.5mm Adapter Cable
Aliexpress UK
Stereo splitter adaptor with one 3.5mm male to two 3.5mm female sockets, ideal for splitting sound sources such MP3 players so two people can listen. Stereo 3.5mm male to two female 3.5mm sockets. 3.5mm Stereo Plug to 2 Socket Adapter.
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3.5mm Male To Type C Female Audio Cable Cord 3.5mm Mobile Phone Adapter Converter Type-C Converter Earphone Adapter 3.5mm Male
Aliexpress UK
✔Solder type, alloy construction, spring strain relief. Total size (each): approx. You will need a suitable adapter to use the item in your country. Certain restrictions apply. An adult signature will be required.
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3.5mm Audio Stereo Jack Female To 2 RCA Male /3.5mm Male to 2-RCA Female /3.5mm Female to 2-RCA Fe Connector Adapter
Aliexpress UK
2.5mm mini stereo jack male plug to 3.5mm stereo female socket. 3.5mm Stereo socket suitable for headphone inputs. Connect a 3.5mm headphone size plug to a smaller 2.5mm socket. 2.5mm Mini Stereo Jack to 3.5mm Socket.
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3.5mm Audio Extension Cable 3.5mm Female to 2 Male 3.5mm Mic Aux Cable for Amplifier DVD Speaker PC Adapter AUX Cable Headphone
Aliexpress UK
Mini 2.5mm MONO Male Plug to standard headphone size 3.5mm Mono Female Socket. Convert a 2.5mm jack socket into a standard 3.5mm socket. MONO ADAPTER.
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Vention Splitter Headphone for Computer 3.5mm Female to 2 Male 3.5mm Mic Audio Y Splitter Cable Headset to PC Adapter 3.5mm Aux
Aliexpress UK
This headphone adapter is used to convert a standard 3.5mm jack into a 6.35mm headphone connection. The gold-plated connections ensure a high-quality connection. This would be used to convert a small headphone plug into a big one for connecting to HI-FI OR DJ mixer.
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Gold Plated 3.5mm Adapter TRS Male to Female TRRS Audio Stereo Adapter Connector 3.5mm 3 Pole Male to 3.5mm 4 Pole Female
Aliexpress UK
Stylish uni-body design, truly ultra-portable, pocket size speaker. Simple turn on speak and plug into 3.5mm audio jack, no Blue tooth pairing, no waiting. Output resistance:4Ω. Type:Mini Speakers. Works with almost any devices with 3.5mm audio jack.
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Type C Audio Cable USB C to 3.5mm Jack AUX Adapter For Headphone Speaker 3.5mm to 3.5mm Aux Wire Cord Type-C Converter Car Cable
Aliexpress UK