Defective Out Of The Box
Charged it up after receiving it and then went to test the heater only to find out it didn't work.  Long pressed the mode button and the red LED lit up then all three red LED's flashed three times then turned off.<br />Update:  Received my replacement and it works as expected.  Changed my rating from 1 to 4 stars.  I may revisit it after a few weeks if the hand warmer performs as promised.  This warmer can get quite hot on the highest setting so be careful.
Rating: 4 stars