1X 3.5mm Female Socket to 2.5mm Mini Jack Headphone Converter Adapter. Can connect to any 2.5 mm stereo headphone. For audio / music output ONLY, audio input not available. Adapter converts the audio output into universal 2.5 mm output.
eBay
YuXi Laptop Power Adapter DC Square Plug Female to 4.0x1.7 5.5x2.1 5.5x2.5 7.9x5.5 MM Male Jack Converter For Lenovo HP Dell
Aliexpress UK
What is this?Stereo TRS Audio Adapter converting jacks, engineered for seamless connections between headphones, MP3/MP4 players, computers, car audio systems, smartphones, and stereo cables with zero signal loss.What will I get?Connector type: TRS3.5mm Male to 2.5mm Female;Signal type: Stereo;Rated voltage range：0-50V;Material: Zinc Alloy Nickel Plating;Size(LxD): 36mm x 10mm / 1.4 In x 0.4 In;Package content: 2 Pcs x Audio AdapterAny advantages of this product?Zinc alloy resists impact; Nickel plating ensures <0.5dB signal loss; Threaded collar locks cables firmly during performances.How to use it?① Plug male end into audio source;② Insert device (mic/guitar cable) into female port;③ Tighten threaded collar to prevent disconnection. What should I notice?Please check the size compatibility with your device before purchasing.
eBay
USB to 3.5mm Audio Aux Adapter Supporting 2-in-1 Microphone and Music USB Male TO 3.5 MM Jack Headphone Converter Cable For PC
Aliexpress UK
2.5mm Mono Plug to 3.5mm Mono Socket. Converts a 2.5mm socket to a standard 3.5mm socket.
eBay
3.5 Mm Female To 3.5mm Female Jack Stereo Connector Coupler Adapter Audio Extension Cable for MP3 DVD Headphone Car
Aliexpress UK
1X 3.5mm Female Socket to 2.5mm Mini Jack Headphone Converter Adapter. Can connect to any 2.5 mm stereo headphone. 2.5 mm output allows you to use your devices with any CD player, MP3 players, and other audio socket.
eBay
Power Solar Connectors 30A Y-Branch Cable, Solar Cable Parallel Adaptor in Pair for Solar Panel 1*M/FF+1*F/MM black red Power
Aliexpress UK
3.5mm to 2.5mm Jack Headphone Adapter Stereo Socket Jack Plug Audio Converter. Please don’t open a case or leave any feedback for any of he reasons below: - Wrong item sent - Arrived damaged - Doesn’t seem authentic
eBay
4.5 x 3.0mm / 7.4 x 5.0 mm Male Plug to 5.5 x 2.1mm Female Jack DC Power Supply Adapter Connector For DELL HP Notebook Laptop
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.
eBay
Grwibeou Type C To 3.5 Mm Aux Adapter USB C To Aux 3.5 Jack Audio Cable for Huawei Xiaomi Redmi Sumsang USB-C To 3.5MM Aux Cable
Aliexpress UK
Leaded 2.5mm Stereo to 3.5mm Stereo Adapter Cable – 13.5cm. This compact and durable adapter cable is designed to facilitate seamless audio connections between devices with 2.5mm and 3.5mm stereo jacks.
eBay
1PCS 5V DC 5.5 * 2.1 mm Power Jack USB 3.1 Type C USB-C Type-c 5.5mm *2.1mm Mini USB & Micro USB DC Power Connector Adapter
Aliexpress UK
This stereo cable allows you to convert a 2.5mm to a standard 3.5mm stereo port. 2.5mm Stereo to 3.5mm Stereo.
eBay
NEW HDMI-compatible to VGA Cable Converter Male To Famale Converter Adapter 3.5 mm Jack Audio HD 1080P For PC Laptop Tablet
Aliexpress UK