Cordless Keyboard and Mouse Combo DPI 1200 in 3 levels- You can easily change the cursor sensitivity of this cordless mouse depending on your activities; usually 800 DPI for office, DPI 1000-1200 for 4K resolution monitor or entertainment like gaming at home. The slim wireless keyboard's noise reduced keys and the silent click of the quiet mice will allow you to do your job without missing a sound or disturbing your environment. The USB receiver provides a reliable wireless connection up to32.8 ft, so you can forget about drop-outs and delays and take it wherever you use your computer. Advanced 2.4 GHz wireless connection delivers the reliability and speed of a corded connection with wireless convenience and freedom up to 32.8 ft away, at home, or at work. The wireless keyboard and mouse for mac includes a full-size keyboard and a high-sensitivity mouse. Works with your PC, desktop computer, laptop, or notebook. Compatible with Windows 7 / 8 Mac operating systems. This cordless keyboard and mouse combo features 14 multimedia hotkeys for instant access to the Internet, email, play/pause, and volume so you can easily check out your favorite sites. The wireless keyboard for laptop measures just 9.72 x 5.9 x 0.23 inches (with 78 keys), the teardrop design guides your hands into the best position and fits your fingers naturally for easy and comfortable whispered typing, no need to bend your arms to learn, this keyboard gives you a comfortable using experience!