2.40 GHz and Bluetooth Wireless Vertical Computer Mouse, Black, USB Receiver, Scroll Wheel, AA Battery, Ergonomic, EA

2.40GHz and Bluetooth Wireless Vertical Computer Mouse helps you operate your PC on nearly any surface and promotes a more natural hand and wrist posture. Premium feel quiet buttons with reduced noise and effort. Precision scroll wheel delivers smooth, controlled navigation. Convenient left side thumb buttons for forward/back browsing. Efficient design increases battery life significantly (one AA battery included).