SutengLED T-Shirt Light Up T Shirts App Controlled Custom Text & Photo Glow Clothes for Party

Only turned it on 3 times, once for about 10 minutes to get the feel of it (got it for a concert the next day). Today (day of the concert) turned it on 2 more times for less than 5 minutes just to show friends how cool it was and how well it worked. 1 hr later, when to show it to a fellow concert goer in line, only flashed the battery, and lines. And in the app, the mask shows up, then disappears not allowing it to connect. I'd stay away, and will be returning mines. Also, the shirts themselves run small, but that wasn't a big deal to me.