Say goodbye to noise & hello to silence with the Verbatim Silent Mouse & Keyboard. Using new Silent Technology, silent click switches, & rubber covers, these Verbatim products are truly silent. The nano receiver is small enough to plug in & leave connected & the 2.4 GHz wireless performance allows for a lag-free connection. The Silent Mouse features Blue LED technology, allowing users to point & click on more surfaces than other micefrom a glass table to the granite kitchen counter! The Silent Keyboard features a full numeric keypad & full-size function keys, all within a slim, efficient design. Maximum Wireless Range: 32.8 ft; Connector / Port / Interface: USB-A; Wired / Wireless: Wireless; Operating System Compatibility: Mac OS x 10.4 & Later; Windows 7 & Later.