Wireless Mouse with Silent Click Buttons Silent-Click switches are up to 90% quieter than other standard mice while still providing positive tactile feedback Connect the USB nano dongle into any free USB port, power on the mouse and installation is complete. Dongle stows away in a handy storage slot when not in use 2.4 GHz wireless technology keeps your workspace clean and uncluttered, allowing up to 10 metre operating range. Auto-standby and auto-wake functions allow a single AA battery (included) to last up to 2 years BlueDiamond Track Silent