... Design, High Accuracy, High Quality, Modern Design....2.4GHz wireless transmission up to 10 meters operating distance.No ... Saving (IPS)Powered by 2 x AAA Alkaline battery. (battery NOT included)With an ON/OFF switch.Intelligent ... use.Specifications:Buttons: Left button, right button, rolling wheelOperation range: Up to 10mOperation systems: Windows 98, 2000, ME ... 1 x USB Receiver 1 x 2.4G Wireless Mouse