Awesomesauce!!!
These slippers are awesome.  Very easy to install the batteries that heat up the slippers.  Comes with a usb cord to recharge the batteries.  There are three different settings for warmth (red for high, blue for medium, and green for low).  Really works!  Started feeling warmth in less than a minute.  I don't know these existed but these are great.  A great value for the price and would definately recommend.
Rating: 5 stars