Feature:1. Multimedia button with one touch, FN + Multimedia composite key to achieve playback/pause, volume adjustment and other fast operations.2. Golden ratio of the angle, wrist will not be tired even for long time typing to ensure the flexibility of the fingers.3. Equipped with high performance 2.4 GHz chip, a wide range of stable wireless receiver.4. Provide seamless and stable wireless environment, highspeed and fast data transmission within 10m / 32.8ft.5. Plugandplay, 2.4GHz wireless technology, 10m / 32.8ft remote reception,1Mbps highspeed transmission.Specification:Item Type: Keyboard Mouse SetMaterial: ABSNumber of Mouse Keys: 3 keysKeyboard Number: 110 keysSupported System: for XP/Win7/Win8/Win10Mouse/Keyboard Interface: USBMouse Battery: 1pc AA battery (not included)Keyboard Battery: 1pc AAA battery (not included)Usage:1. Take out the USB receiver from the bottom of the mouse and plug it into the USB port of the computer. The computer will automatically install the driver program.2. Open the battery cover at the bottom of the mouse, and load an AA battery (not included)into the battery warehouse (pay attention to the polarity of the battery must be correct). After the mouse is powered on, it will automatically , and it can be used normally.3. Open the battery cover at the bottom of the keyboard, and put a AAA battery (not included) into the battery bin (