On the back of the form of the variables is stamped so that it can be easily cut for its size. Fits perfectly into the boot, behind the sole is thicker, thus it is about 1cm above, but that is irrelevant in winter shoes.
At the end is a small opening:
1. for the connector for charging
2. a small switch for setting 100% power for 50 degrees or 60% power for 40 degrees
But first they must be charged, which lasted 2 hours in the manual it says 3 hours.
I've tried the shoes last weekend because we had a booth by the association at the Christmas market. Simply gorgeous, I had the 40-degree-level elected and had 8 hours warm feet. The other helpers complained despite good footwear about cold toes and frozen whole a lot more than me.
Well, the price is not without, but the effect top and I think that you can wear them for several years.
