Internal use, can be used for running to an extension socket or to extend an existing cable.
eBay
Mono/Stereo 2.5mm Male Plug / Female Jack Audio Headphone Connector 2/3/4Pole Pin Extension Bare Wire Cable Soldering DIY Repair
Aliexpress UK
The cord's sleek design blends seamlessly with any decor, making it a practical and stylish addition to your setup. 20 Pcs Plate Hangers for The Wall Invisible Sticky Board Hook. 10 PCS Thin Foam Sheets for Crafts DIY Crafting Toy Making Child.
eBay
3.5mm Mono/Stereo Male Plug Female Jack Connector 2/3/4 Pole Pin AUX Extension Wire DIY Audio Headphone Repair Cable 30/50/100CM
Aliexpress UK
Convenient Length Options: Available in various lengths to suit your specific needs, providing flexibility in arranging your audio setup without unnecessary cable clutter. With cable lengths ranging from 2m up to 20m.
eBay
3.5mm 1/8'' Mono/Stereo Male Plug Female Jack Connector 2/3/4 Pole Pin AUX Extension Wire DIY Audio Headphone Repair Cable 30CM
Aliexpress UK
Standard RJ11 connectors on both ends.
eBay
JCD Micro USB C Type-C FPC 2Pin 3Pin With Resistor R1 Soft Flat Cable Male Plug Mobile Phone Fast Charging Cable Extension Wire
Aliexpress UK
Connector Type: Male BT to Female BT. Standard BT connection extension cable lead cord. Quantity: 1 cable. WOLY, ANGEKUS, SHOESTRING, KIWI, DASCO. TRG Mink Oil Leather Conditioner Waterproofer Shoe Boot Sofa Handbag 100ml.
eBay
1.5m 3.5mm Jack Male to Male Extension Aux Line Audio Cable for iPhone Samsung Xiaomi Car Headphone Audio Jack Braided Wire
Aliexpress UK
Coiled cord with modular 4/4 plugs at both ends. Fits between handset and phone base. 2.5Mtr Modular Handset. 2.5 mtr (White ) Max extended length. C oiled Extension Cord.
eBay
3.5mm 2.5mm Mono Stereo Audio Cable Male Female Plug Jack Connector Cord 2/3/4Pole TS TRS TRRS Extension Wire DIY Earphone Mic
Aliexpress UK
This 10m RJ11 extension reel has a variety of purposes. 10m RJ11 Multi Purpose Extension Wire Cable Reeler.
eBay
USB Male to 3.5mm Male Audio Cable USB-A to 3.5 Jack Aux Cord Audio Adapter Wire For Headphones Speaker PC Extension Audio Line
Aliexpress UK
Brand New Never Used or uncoiled, we have over 100 units so please enquire for bulk purposes 10 metre RJ11 to RJ11 telephone extension cable in white. Suitable for landline phones, broadband modems, fax machines and ADSL connections. Standard RJ11 connectors on both ends. Ideal for home or office use where a longer reach is required.
eBay
1.5m 3.5mm Jack Male to Male Extension Aux Line Audio Cable for iPhone Samsung Xiaomi Car Headphone Audio Jack Braided Wire
Aliexpress UK