Stable 2.4G Wireless Connection: Powerful and reliable connection of wireless keyboard mouse is up to 10 m. Wireless keyboard with mouse combo share a Nano receiver. Efficient Keyboard Wireless + Wide Compatibility: Cordless keyboard and 11 function keys allows you to quickly access the music/control volume/mail, etc. The keyboard mouse combo wireless is compatible with Windows/OS operating systems. Silent Keyboard and Mouse: The wireless office keyboard s scissor switch keys provide less noise. Silent cordless mouse has 5 DPI levels (800/1200/1600/2000/2400). It is fast and precise, keep quiet. Ultra-Slim and Portable Design: Wireless pc keyboard has ultra-thin body, which can easy to carry. keyboard and mouse wireless is super match with office desk. Battery Included + 2-Year Warranty: Long-lasting basic AA and AAA batteries are included in the wireless keyboard and mice combo, If quality problem with wireless keyboard & mouse set occur within one year, we will replace the new one.