NO SOUND, NO WIRES : Get work done all day long, with the wireless mouse that stays connected, featuring a unique silent click that lets you enjoy that same click feeling without all the noise CONVENIENT CONNECTIVITY, NO STRINGS ATTACHED : Enjoy a reliable connection with a 2.4GHz wireless dongle, store the dongle inside the mouse when you're on the go CLICK QUIETLY :This mouse has up to 90% noise reduction on the left and right buttons - So, you get that same click feel without the sound, it’s perfect to use in any space DESIGNED FOR COMFORT : Be at your most productive using an ergonomically designed mouse that provides all-day comfort KEEP CLICKING FOR UP TO 18 MONTHS : Ready when you are, with a battery life that lasts up to 18 months