Velcro Headband Secret Pocket
To find the secret pocket on your headband, lay it in front of you with the Tachyon label on the left end and the Velcro fastener on the right end. Hold the edges of the headband between your thumb and fingers about one inch in from the right end and squeeze gently, and you should see the slit for the secret pocket open up close to the right end of the Velcro. You may have to use a scissors or small knife to open it completely if there are any threads blocking it. The 24mm cells are sold separately.