Logitech Marathon M705 Mouse - Radio Frequency - USB - Optical - 7 Button(s) - Charcoal - Wireless - 2.40 GHz - 1000 dpi - Scroll Wheel - Right-handed OnlyMARATHON MOUSE M705Power on-a wireless mouse that runs for up to three years on one set of batteries.THREE-YEAR BATTERY LIFEUp to three years of battery life helps you save time, money, and the planet by practically eliminating the need to change batteries. An indicator light lets you know when the battery is low.HYPER-FAST SCROLLINGYou’ll fly through documents and Web pages with a single spin. Click-to-click scrolling gives you the precision you need when navigating lists, slides, and images.PRECISE CURSOR CONTROLLogitech optical tracking offers precise cursor control and smooth navigation on most surfaces with 1000 dpi.ADDITIONAL BUTTONSWant to quickly switch from page to page on the Web in an instant? You’ll save time with the Forward/Backward buttons.SCULPTED, RIGHT-HAND DESIGNThe sculpted, right-hand shape guides your hand to a naturally poised position and places customizable control within your reach.SUPER POWERSForget the hassle, expense, and waste of frequent battery changes. You’ll have up to three years of power.CONNECT WITH EASEYou pop the tiny Logitech Unifying receiver in your notebook and leave it there. You can even add more devices. Plug it. Forget it. Add to it.SCROLL WITH ITHyper-fast scrolling-one spin and you may never go back to an ordinary scroll wheel.Battery Included YesWeight (Approximate) 135 gColour CharcoalHeight 109 mmWidth 71.1 mmDepth 41.9 mmDevice Supported MACDesktop PCMovement Detection OpticalMovement Resolution 1000 dpiPointing Device Connectivity Technology WirelessPointing Device Wireless Technology Radio FrequencyNumber of Total Buttons 7Scroller Type Scroll WheelWireless Operating Frequency 2.40 GHzErgonomic Fit Right-handed Only