It is a mouse for people who do not have two arms or cannot function because of an accident or congenital disability. If the user moves his or her mouth to the left and right while manipulating the mouse with his or her mouth, the cursor moves left and right, and if he or she blows it with his or her mouth, it seems like a mouse click. I give my heartfelt support to the company and engineers who make it even though I know that there will be little profit for the disabled. Thank you for introducing me a good product.