Recently received my hand warmer in the fun yellow color and was excited to try it out. I sit outside with my dogs every morning and chuck the ball for sometimes an hour.
It's currently 6 degrees, well within the recommended temperature range. I had the hand warmer on the max heat setting, the entire time, and honestly feel like a cheap pair of gloves would have kept my hands warmer and would have been more practical.
I do this morning activity with friends and had the three of them try it.. all of them had the same response as me.
Really disappointing - Canadian brand, good looking product and appears to be well built, liked the idea of recharging as opposed to buying the throw-away heat packs and the idea of having a pack around my waist.
Idea is awesome and the look is good but it fails in it's sole purpose - keeping your hands warm.