Japanese manufacturer Elecom has developed a unique mouse called: MENDO Kandenchi Mouse. This mouse unconventional is cut like a stack. 32.5 mm x 32.5 mm x 53 mm, that is the size of the computer mouse-like 32 grams of a AA battery. Contrary to what one might imagine, MENDO Kandenchi is held vertically, which makes its use even more original. This is an optical mouse and wireless.