Wired keyboard/mouse set features a whisper-quiet keyboard with wear-resistant keys to minimize the noise created from typing for distraction-free use in any environment. Four hot keys on the keyboard provide instant access to your calculator, e-mail, browser and sleep mode. Three-button mouse with a 1,200 dpi optical sensor utilizes a symmetrical design for comfortable use by both left-handed and right-handed users. Plug-and-play USB connection allows immediate use without any software to install. Keyboard is designed to provide continuous usage for up to 10 million keystrokes. Keyboard/mouse set is perfect for airlines, banking industries, schools, gaming, kiosk applications and more.