This product is either discontinued or we cannot get that from suppliers.
HP H2W16AA, HP X4500 Wireless (Black) Mouse, USB wireless receiver at 2.4 GHz, O/S Compatible with Microsoft® Windows® 7, Windows® XP, Windows® Vista™ operating systems.
With the force of a lightning bolt, the HP Wireless Mouse X4500's design, 30-month battery life and precise laser sensor grab your soul and won't let go. (Actual battery life will vary with use and environmental conditions.)