Batteries Supplied: Yes. Battery Type: 2 x AA. Brand: Microsoft. Connectivity: USB. Features of Product: Wireless. Modern eronomic design. Laser technology. Laptop Mouse: Yes. No of Buttons: 4. Orientation: Right Handed. Product Depth: 6.985 cm. Product Height: 12.7 cm. Product Weight: 469. Product Weight Units: g. Product Width: 12.7 cm. Programmable Buttons: Yes. Retractable Cable: No. Scroll Wheel: Yes. Ultra Compact Receiver and Transmitter: No. Wireless: Yes - 2.4GHz.