SILENCE AND FLOW Hush... M590 Multi-Device Silent lets you get through your tasks with noiseless efficiency. Using Logitech FLOW, it has the almost magical capacity to navigate seamlessly on two computers and copy-paste from one to the other. Its 90% click noise reduction ensures you won t be disturbing those around you. EFFORTLESS MULTI-COMPUTER WORKFLOW Unleash the potential of M590 with Logitech Flow, for the smoothest workflow between computers. You ll be able to move your mouse cursor across two computers and even copy/paste text, images and files from one computer to another. It\'s more efficient than sending yourself emails. 1 ENJOY THE SOUND OF SILENCE With the same click feel and over 90% noise reduction on the click sound, M590 delivers a quiet experience for you and your neighbors. Plus, M590 has feet made of high-performance material and a rubber wheel for quiet gliding and scrolling. HIGHLY PRECISE SCROLLING Our micro-precise scroll wheel packs more grooves per millimeter, so you ll be scrolling faster and more easily through long web pages. 2 THUMB BUTTONS The two thumb buttons give you extra control right where you need it. They re programmed to move backwards and forwards through web pages, but you can customize them to do exactly what you want on Mac OS X and Windows(R) by downloading Logitech Options(TM) Software. 2-YEAR BATTERY LIFE This mouse just keeps going with 24 months of power on a single AA battery. Automatic sleep mode and an On/Off switch save power, while a battery indicator light eliminates annoying surprises. 2 Technical Specifications Dimensions (H x W x D) Mouse: 103 mm x 64 mm x 40 mm Dimensions (H x W x D) Receiver: 14. 9 mm x 14. 3 mm x 6. 5 mm Weight (with batteries): 101 g Weight: 1. 63 g Connection type: Bluetooth Smart and 2. 4GHz wireless connection Wireless range: 10 m Battery details: 1 x AA Battery life: 2 years Sensor technology: Logitech Advanced Optical Tracking Sensor resolution: 1000 dpi Scroll Wheel: Yes Number of buttons: