An imaginative Envavo company manufactures the Heatbuff Heatburn Heater and claims to be the best solution for the frozen fingers of gamers and those working on workstations.
If you are an avid gamer or spend endless hours on the keyboard due to your profession, the company Envavo has a gadgets to help your frozen fingers. He has designed a targeted space heater, which he calls it Heatbuff, and is designed to keep the hands of gamers warm.
This gadget at this time, due to funding, is in the Kickstarter. Also in Reddit you will find a related discussion three years ago that concerned gamers' concerns about how to keep their hands warm.
The Heatbuff heater works with infrared radiation and starts at $71. Our company assures us that their product is safe to use and there is no such thing theme to heat up your keyboard.