Verbatim Wireless Notebook Multi-Trac Blue LED Mouse, Tattoo Series, Koi 98615 Blue LED technology - navigate with precision and control on virtually any surface, including glass, granite countertops, hardwood floors, carpeting and more Wireless - 2.4 GHz wireless reliability and performance via Nano receiver so small you can plug it into your laptop and forget about it! For added convenience, the receiver may also be conveniently stored inside the mouse Ergonomic - use this mouse for hours with its comfortable, contoured shape and easy grip surface Blue LED Technology - Navigate with precision and control on virtually any surface, including glass, granite countertops, hardwood floors, carpeting and more! Windows 8 Functionality - Side buttons are pre-programmed to allow quick, easy access to Windows 8 Application and Charms sidebars. Wireless - 2.4GHz wireless reliability and performance via Nano receiver so small you can plug it into your laptop and forget about it! For added convenience, the receiver may also be conveniently stored inside the mouse. Ergonomic - Use this mouse for hours with its comfortable, contoured shape and easy grip surface.