You&ll appreciate how this wireless mobile mouse comfortably fits your hand & your mobile lifestyle Use it just about anywhere even on a rough park bench or your living room carpet relying on Microsoft Blue Track Technology When it’s time to pack up & go you’ll hardly notice the tiny transceiver Keep it plugged into the USB (Universal Serial Bus) port or stow it in the bottom of the mouse for travel Keep using your mouse for up to eight months with a single battery & rely on the power indicator to tell you when it’s time to replace it Ideal product for out & about Compact compatible & most recent Blue Track technology Rubber case sides Battery status display Suitable for right- & left-handed users