Logitech M525 Wireless Mouse (Black)

1000 dpi movement resolution.
Smooth optical sensor provides laser-like precision on most surfaces, including polished or wood-grain tables.
Small receiver plugs into your computer's USB port.
Wireless connection transmits data via 2.4GHz signals. 8' range.
Ultra-precise scroll wheel.
2 buttons.
Comfortable, ergonomic design.
Low battery indicator light.
Backed by the manufacturer's 3-year limited warranty.