Kensington Pro Fit Ergo Vertical Wireless Mouse Black

Contoured, natural 46.7 degrees slope keeps the wrist in a neutral handshake position, eliminating soft tissue compression. An extended lip for the little finger provides complete support for smoother, larger muscle group movement. Fully-featured mouse with scroll wheel, left, right, forward, back, and DPI (800/1000/1200/1600) buttons. Simply plug in the nano receiver for plug & play wireless connectivity up to 20 metres. One AA battery lasts up to a year and low battery indicator lets you know when it Nano receiver conveniently stores inside mouse when not in use.