Plug and PlayFeaturing a reliable 2.4GHz wireless connection up to 33ft, this keyboard and mouse combo provides you a lag-free wireless convenience, comfortable typing experience, and smooth cursor control. Quiet Keyboard and MouseReduces 90% of the distractive noise to improve your productivity. The low-profile, concave keys make your fingers immediately feel at home. The ambidextrous, compact mouse allows an easy navigation for both left- and right-handed users. Spill-Proof DesignEnjoy your cup of tea while browsing news or emails, the X2100 is well protected against a maximum of 200ml liquid spillage. *Tested under limited conditions, please do not immerse the keyboard in liquid. 12 Multimedia & Extra Calculator KeysConvenient and essential hot keys give you instant access to browser (forward, back, homepage), email, and media control (play, pause, skip, volume +/-, mute, etc). Whats more, we also add an extra calculator key to streamline your workflow to next