Yup. If you wanted to make a setup that has sound, you'd need the following items:
LED module (or MLS unit)
Resistor
Battery pack and speaker (combo will work best)
Switch
Soundboard (Obsidian USB in this case)
O_o Woow, so you were right, building lightsabers is like for pros, I think I will buy one from the website and maybe in the future I can build my own lightsaber
Thanks. Do you have a lot of lightsabers?