1.Slim and Ergonomic Design The slim keyboard 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. 2.Less Noise&Profile Keys Typing The 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 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. 3.Fast Operation 2.4G Wireless Plug and Play Simply connect both your portable keyboard and mouse 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.