Made with antimicrobial material which prevents the growth of harmful bacteria and protects against the buildup germs between washings. The keyboard is wrapped with an advanced silicon material that will protect it against oil, water, and dust. The silicone material also offers the ability to remove germs with liquid disinfectants or soap and water. The lightweight, slim and compact design is perfect for travel, school and other industrial or medical environment. Key Layout: 120-Keys US Layout Indicators: Numb-Lock, Caps Lock and Scroll Lock Internet Hotkeys: 4 ( Homepage, Email, My Computer, Favorites) Multimedia Hotkeys: 7 (Volume Up & Down; Mute; Previous Track, Next Track, Play/Pause; Stop)