Delock 3.5mm 4-PinTRRS ExtensionCable,

Delock 62498 — 17.5cm 3.5mm 4-pin TRRS extension cable in black, for extending headsets with combined audio and microphone connections on a single 3.5mm jack.

The 62498 extends any 4-pin TRRS (Tip-Ring-Ring-Sleeve) headset cable by 17.5cm — useful for reaching a laptop or smartphone port without straining the headset cable. Note that the pin assignment swaps the GND and AUX positions between the male and female ends (male: L–R–GND–AUX; female: L–R–AUX–GND), which is the standard CTIA/AHJ to OMTP crossover convention. Check your headset and device compatibility before use.

GND and AUX pin positions swapped between ends (CTIA/OMTP crossover)

Suitable for extending combined headset and microphone cables

Connector A (male): 3.5mm 4-pin — Audio L / Audio R / GND / AUX