Mini Mouse Unblocker In The Hp Blossom Reteactable USB Mini Mouse AAA Battery Space, I Want To Know Whats That 4 ?

In The Hp Blossom Reteactable USB Mini Mouse AAA Battery Space, I want To Know Whats That 4 ? - mini mouse unblocker

In Reteactable Blossom HP USB mini-mouse-button Scroll up or down slightly, there is a space that can be initiated after the HP logo, and there is a space, AAA battery, I know that?