* Ultra silent: whisper keystroke for low - noise typing
* N-key rollover:simultaneous operation of up to 19 keys with out any key ghosting effects
* Whisper keyboard keys with wear - resistant laser key legends
* Win - Key lock:Windows buttons can be disabled
* 3 million times long service life of micro switch
* High resolution mouse,up to 3200 DPI,sensitive response
* Four DPI transmission