Overview: Lenovo M202 is ready when you are. Simply plug the receiver into a USB port on your device to start working in seconds. The small size and smooth cursor control make it great for tight workspaces and busy desks. Features: 2.4GHz Wireless Connection: The wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10-meters. Plug and play with USB receiver. Comfortable Shape: The comfortable, contoured shape mouse follows the natural curve of your hand, comfortable for both left- and right-handed users. Compact and Portable: Compact and wireless, the mouse fits easily with your laptop in a bag, so you can take it anywhere you work. Precise Control: The optical sensor allows you to track with smooth and accurate cursor control on almost any surface. 3-Speed DPI Switchable: Lenovo M202 wireless mouse supports 3 adjustable DPI speeds, 800-1200-1600, you can control the speed more freely and easily. Specifications: Brand Name: Lenovo Model Number: M202 Connection Type: 2.4GHz wireless connection Wireless range: 32.81ft (10m) DPI (Min/Max): 800-1200-1600DPI Number of Buttons: 4 Scroll Wheel: Yes, optical Battery Details: 1 * AA (NOT included) Color: Black Item Size: 99*60.2*32.3mm/3.89*2.37*1.27in Item Weight: 52g/1.83oz Package Size: 11*8*5cm/4.33*3.15*1.96in Package Weight: 100g/3.52oz Package List: 1 * Mouse 1 * USB Receiver