Already equipped with an input device of its own, you might ask why you would need to buy an extra mouse for your laptop. Indeed, the touchpad is nifty in its own right, and as far as convenience and ease of use go, it fits in perfectly with the overall design philosophy of laptops. However, a true mouse affords you greater control and accuracy than a touchpad, hands down. Thus, if you use your laptop for applications that require greater pointing precision, then what you need is a mouse. What you need is the Saitek 9M09V Notebook Optical Mouse.