1.Slim and Ergonomic Design The slim wireless keyboard and mouse combo has a tilt angle for the great typing position.Sweat-resistant, skin-friendly finish wireless mouse in contoured shape would provide hours of work comfortably. The full size wireless keyboard type fast with numeric keypad and instant access your music,internet,e-mail,volume,etc by multi-media hot keys.(The hot-keys not fully compatible with Mac System) 2.Less Noise&Profile Keys Typing The 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 wireless keyboard and mouse combo features auto sleeping mode, plus on/off switches to help conserve battery use, you can go for months without the hassle of changing the batteries.(AA batteries are not included) 3.Fast Operation 2.4G Wireless Plug and Play Simply connect both your portable wireless keyboard and mouse set with one USB receiver(The nano receiver just snap in the storage of mouse near battery compartment.) without any software and then enjoy a strong and reliable wireless connection up to 10 meters(33 ft) away with virtually no delays or dropouts 4.HIGH PRECITION Wireless Mouse DPI 1600 in 3 levels- You can easily change the cursor sensitivity of this cordless mouse depending on your activities;usually 800 DPI for office, DPI 1200-1600 for 4K resolution monitor or entertainment like gaming at home. 2 polling rate: 125Hz and 250Hz; adjusted by pressing the right key and the wheel simultaneously at 3s for change 5.Compatible Wireless Keyboard and Mouse Combo The keyboard and mouse combo includes a full-size keyboard and a high sensitivity mouse. Works with your PC, desktop computer, laptop or notebook. Compatible with Windows XP / Vista / 7 / 8 /10 operating systems