making of LED device part 2

Tried at least 6 old 3.5mm audio jacks finally get one which works

later i figure out that they wont work because i didn't solder them together.

actually i blink with the music i am playing!

Then start serious soldering (This is the first time soldering ever in my life)

not bad right?

After hours of trying the device finally works

Nice effect in complete darkness