Smooth, precise and affordable wireless optical 3-button mouse with USB-A nano receiver for laptop, desktop and netbook PCs. 2.4 GHz wireless (not Bluetooth) provides a powerful, reliable connection. Nano-receiver stays in your PC USB port or stows conveniently inside the wireless mouse when not in use. Works with Windows 2000, XP, Vista, 7, and 8. Dimensions: 10.08 x 5.79 x 3.99 cm; Weight: 62.65 Grams.