1. Long Distance Transmission: Wireless keyboard mouse adopts 2.4G wireless technology, which can realize 10 meters wireless transmission.2. Energy Saving: Wireless keyboard mouse combos has an intelligent sleep mode, which can intelligently sleep when not in use, saving energy and electricity.3. Comfortable to Use: The wireless mouse adopts ergonomic design, which is comfortable to hold, and it is not easy to be fatigued after long term use.4. Easy to Use: USB wireless keyboard mouse combos is easy to use, plug and play, no complicated procedures.5. Small Portable: 2.4G wireless keyboard mouse has a compact structure design, light weight, and convenient to carry when going out in the office.Spec:Item Type: Wireless Keyboard Mouse CombosMaterial: ABSKeyboard:Working Mode: 2.4G WirelessTransmission Distance:Approx. 10m / 10.9ydWorking Frequency: 2408-2474MHzWorking Voltage: 3.7VInterface Type: USB2.0Battery Model: 2 AAA Batteries (not Included)Coding Matching Method: ESC+KMouse:Working Mode: 2.4G WirelessTransmission Distance: Approx. 10m / 10.9ydInterface Type: USB2.0Battery Model: 2 AAA Batteries (not Included)DPI: 800/1200/1600How to Use:Turn on the power and pair it to use.Package List:1 x Keyboard1 x Mouse1 x ReceiveNotice:Ship without battery.