I remember that a few years ago some music festival-goers made LED masks with their own hands. It's amazing how far technology has come and the result is this mask. The mask itself is much lighter than it looks and there is plenty of breathing room between the mask and your face. That's good because if you dance with it, sweat will be an issue, but this mask has alleviated that particular problem. The battery seems to last over 3 hours. This makes the LED mask look better, but at the expense of visibility. So I guess you'll have to re-tune it if you dance with it like I did. It connects to a standard Chinese "Shining Mask" app via Bluetooth.