This is half Skeptics SE , half here.
Please help me proving this Kickstarter is baloney. Besides the stupid marketing claims what we have here is a neck band shaped portable device of 180x177x45mm total size which utilizes Peltier cooling operated from a 6000 mAh battery to provide 7F cooler air to the wearer up to 2.5 hours. There's a 8W "rated power" whatever that means -- I will observe that gets pretty close the theoretical maximum you can get from the battery that is 6 mAh * 3.7V / 2.5 hours. I am reasonably sure this can't possibly work as claimed. What does physics has to say on this?