1.Stable Connection,Fast Response2.4GHz wireless technology provides automatic frequency recognition and stable signal, plug and play, connection range up to 33ft without any delays. One tiny receiver connects with both your wireless keyboard and mouse by only using one USB port,streamlining your workspace,and liberating your ports.(USB receiver INCLUDED in mouse's battery compartment) 2.Quiet and Comfortable TypingNoiseless keyboard and mouse wireless provide whisper quiet typing and clicking, with responsive (2mm stroke length), silky smooth keys, low-profile keys and silent click buttons for a more pleasant typing experience, so you no longer have to worry about disturbing others when working at home. With ergonomic designs key caps, more smooth typing, comfortable typing in the office or at home. 3.Wireless Mouse DPI 2400 in 5 Levels You can easily change the cursor sensitivity of this computer mouse mouse according to your activities: typically 1600 DPI for office use, DPI 2000-2400 for 4K resolution monitors, or for recreational activities such as gaming at home. Ergonomically shaped, the wireless mouse for laptop also features forward and back buttons that allow you to flip through photo albums and web pages quickly and easily. 4.Auto Sleep & Power SavingThe wireless keyboard mouse combo have a power switch that can be turned off when not in use to save power. The wireless mouse and keyboard combo has an automatic power save feature. The built-in smart power save feature hibernates the full-size keyboard after 60 seconds of inactivity and the cordless mouse after 90 seconds of inactivity.Battery life is 18 months for the keyboard and 24 months for the mouse, eliminating the need for frequent battery changes.