You do not need to adjust the temperatures as the socks are designed to warm up to counter the cold in your environment.
They improve blood circulation to the arteries which eventually makes the body warmer.
You have two different options of powering them; you can use either rechargeable batteries or AAA batteries.
They are made of soft fabric which is very gentle to the skin.
You will be comfortable all through while using them since they are made of very soft fabric that is breathable.
The come with a pouch on either sock which you can use to store the batteries for easy management.
You can use them to reduce the effects of Raynaud's syndrome.
The location of the pouch that holds the batteries in position can be quite uncomfortable for some people.