Dear Fellow EMD enthusiasts!

I’m looking for some information about rave and EDM gear. Im part of a Startup Team, looking for to put a new product on Kickstarter. We are curious to know, what are the common problems that you experience you wear your gear? For instance, wear LED bracelets, sometimes there are hot spots (dead spots where there are no light), the battery and bracelet is too bulky? What would make your experience better ?

Feedback would be Awesome!
Cheers!
-Sophie