3.5mm Headphone Splitter Jack. 1 X Audio Splitter Adapter Cable (3.5mm 1 male to 2 female). This New 3.5mm Jack Dual Headphone Adaptor. Male to 2 Dual Female Audio-In Stereo Cable Lead. It could convert single 3.5mm stereo jack to dual 3.5mm stereo jacks.
eBay
Gold Plated 3.5mm TRS Stereo Jack Extension Cable - Male to Female Aux Audio Cable for Headphones
Aliexpress UK
Universal fit for many devices such as electric guitar, electric keyboard, electric piano, amplifier, speakers. 2x Headphone Adapter Jack. Gold plating for improved sound quality.
eBay
1 Pcs Durable 6.35mm 1/4 Male To 3.5mm 1/8 Female Connector Stereo Headphone Adapter Audio Jack
Aliexpress UK
This headphone adapter is used to convert a standard 3.5mm jack into a 6.35mm headphone connection commonly used for headphones use with amplifiers. Stereo adapter. 1x 3.5mm F to 6.35mm (1/4 in) M Adapter.
eBay
Wired Headphones 3.5mm Sport Earbuds with Bass 3 5 Jack Phone Earphones Stereo Headset with Mic
Aliexpress UK
✅✅ 【 Enhanced Durability 】 The Phono to 3.5mm Jack Cable is made of high quality materials ensuring its durability. This RCA auxiliary cable has passed multiple bend tests and is strong enough to resist twisting, pulling, and tangling.
eBay
Jack 6.35mm To 3.5mm Extender Headphone Adapter 1/4'' To 3.5mm Female Stereo Audio Extension Cable
Aliexpress UK
Ex-Pro® - iPod / iPhone / MP3 Headphone splitter - Turn 1 Socket in to 2 3.5mm Male (stereo) - 2 x 3.5mm Female (stereo) Use with iPod, iPhone, iPad, MP3, CD players indeed any device which has a headphone 3.5mm socket, this little device splits the socket to 2 (Share your music with your friends !). Nickel plated connections.
eBay
5pcs PJ392 3pin 3.5mm Video Stereo Female mount Jack Sockect Plug with Screw Audio Headphone power
Aliexpress UK
3.5mm Stereo Male Jack to 3.5mm Stereo Female Socket. Slim 3.5mm Jack Plug to Slim 3.5mm Jack Socket. Slim 3.5mm Jack Extension Lead. High Quality Slim & Flexible Audio Extension Lead. THIS SLIM JACK WILL FIT YOUR PHONE/TABLET WITHOUT REMOVING THE PROTECTIVE CASE.
eBay
3.5mm Stereo Audio cable Y Splitter Adapter Volume Control Headphone Phone AUX Cable 3.5 jack
Aliexpress UK
3.5mm to 6.35mm Stereo Audio Adapter, a versatile and essential tool to expand your audio setup. Connector B: 6.35 mm (1/4 in) Jack Female. Connector A: 3.5 mm Jack Male. 3.5mm to 6.35mm Stereo Audio Adapter – Seamless Connectivity for Superior Sound.
eBay
1pc Gold Plated 3.5mm TRRS Stereo Female 4 Pole Jack to 3x 1/8" Male Plug Audio Headphone Adapter
Aliexpress UK
VICTECK Headphone Extension Cable 5M, 3.5mm Stereo Jack Cable Male to Female aux.
eBay
Universal RCA Cable 3.5mm Jack Stereo Audio Cable to 2RCA Socket Female to male to Headphone 3.5
Aliexpress UK