This short stereo jack cable by Delock enables you to change the 2.5 mm stereo jack female port into a 3.5 mm female port. Furthermore the angled 2.5 mm stereo jack male connector is angled in case the existing port is difficult to access.
You can solder this stereo jack from Delock to a cable and use it on your devices with a 6.35 mm plug. For soldering, open the stereo jack by screwing and solder the cable on the provided lands. Hard bending spring ensures an overall protection for the cable.