Human hands are unique. No other creature in the world has hands that can grasp, hold, move, and manipulate objects like human hands. They are one of your greatest assets. And, as such, must be protected and cared for. That's why Bruntmor created a cordless palm hand massager that you can take with you anywhere you go! It is compact, portable so it can be used at home, work or while traveling. The air pressure massage kneads and presses to help relieve tension. Choose from High, Medium and Low massage modes or circulate through all 3 There is optional heat with high and low settings for hand back. There is also a pressure reduction valve that immediately releases air if your hand gets uncomfortable.