Targus Notebook Optical Wireless Mouse USB - AMW20USX - NEW OEM Targus 3-Button Wireless Optical Notebook Scroll Wheel Mouse General Features: Wireless Optical technology 3-button design Scroll wheel (acts as third button) Ideal size for Notebooks Operates on two (2) AAA batteries USB Receiver Dimensions: 1.5 x 2.2 x 4.1-inches (H x W x D, approximate) Regulatory Approvals: FCC CE