Adesso iMouse E30 - 2.4 GHz Wireless Vertical Programmable Mouse

2.4 GHz RF Wireless Technology with On/Off Switch - This mouse works at any angle with a range of up to 30 ft. with no wires to get tangled. The On/Off switch helps conserve battery power plus the low battery indicator helps you know when it is time to change batteries. Ergonomic Vertical Design - The vertical design provides better support for your forearm minimizing wrist pain that can come from twisting. Adjustable DPI Switch and Back/Forward Buttons - Switch DPI easily from 800, 1200 to 1600, and access to back/forward navigation shortcut without driver. Plug-and-Play - Simply plug the mini USB receiver into a USB port and you will be up and running. No drivers required, works with Windows or Mac OS. With 2.4 GHz Radio Frequency technology, the Adesso iMouse E30 Wireless Vertical Righthanded Ergonomic Mouse provides you with wireless convenience and the freedom of a smooth connection for up to a 30-foot range without tangled cables. This ergonomic mouse is designed with a vertical