Battery powered IR Head Tracker

AA Battery powered version of a Track IR Clip.
The switch is superglued to the frame.

Materials required:
-Wire
-switch (clip off one of the contacts on the side)
-30 Ohm resistor (yours depends the voltage of your LEDs. check out an online resistor
calculator for parallel circuit LEDs)
-IR LEDs of your choice. (mine are 1,5V 20mA)
-velcro for the back or some rubber bands to attach it to your headset