Packed with the smartest features, the Kensington PocketMouse Pro Wireless allows you to work without cords and on any surface. The USB wireless receiver stows easily inside the mouse so there s just one thing to carry. Built-in power saving technology turns off the mouse when traveling, saving battery life and replacement hassle. Add a rotating USB connector, low-battery indicators, a 3ft range, and it s easy to see why PocketMouse Pro Wireless is the most intelligent mobile mouse on the market.$6 each plus shipping$10 for 2