
If you are interested in making a DIY extra-long audio extension cable, you can take a look at this article.
Suppose you happen to have an old headphone cable, an electric knife cable, and a socket. You can use these materials to make an extra-long audio extension cable for connecting your headphones over a longer distance. This can solve the problem of not having Bluetooth headphones and is especially useful when you need a temporary solution.

For the old headphone cable, you only need the plug:

So, first, you need to remove the plug from the headphone cable.


Then, you need to remove the inner core from the end that connects to the computer:

Next, you need to solder the wires, with brown for the left channel, blue for the right channel, and black for ground:

Then, you can connect a 3.5 mm audio connector to make it convenient to connect other audio devices. This allows you to use the cable in two ways, either male-to-female or male-to-male:

After that, you need to solder the socket into place:

Then, you need to straighten and position it properly:

Finally, you need to cover one end with heat-shrink tubing and secure the other end with insulating tape. Your DIY audio extension cable is now complete:

The length is definitely long enough.
