Battery Requirement: 1 x AA. Battery Type: 1 x AA. Brand: Logitech. Connectivity: Wireless. Features of Product: Ergonomic design with soft rubber grip provides exceptional comfort a€“ even after long hours of use. Plug-and-forget nano-receiver is so small it stays in your laptop, so that your mouse is always ready to use. Logitech advanced 2.4 GHz wireless provides a powerful, reliable connection a€“ with virtually no delays or dropouts. Intelligent battery management delivers months of use and added convenience. An indicator light eliminates surprises and automatic sleep mode turns off the mouse when youa€™re not using it. High-definition optical tracking (1000 dpi) enables responsive and smooth cursor control. Laptop Mouse: Yes. Product Depth: 20.95 cm. Product Height: 8.89 cm. Product Weight: 0.2. Product Weight Units: kg. Product Width: 14.93 cm. Programmable Buttons: Yes. Retractable Cable: No. Scroll Wheel: Yes. Wireless: Yes.