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, high‑speed and fast data transmission within 10m / 32.8ft. 5、Plug‑and‑play, 2.4GHz wireless technology, 10m / 32.8ft remote reception,1Mbps high‑speed transmission. Item Type: Keyboard Mouse Set Material: ABS Number of Mouse Keys: 3 keys Keyboard Number: 110 keys Supported System: for Windows XP/Win7/Win8/Win10 Mouse/Keyboard Interface: USB Mouse 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 code, 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 (note that the polarity of the battery must be correct). After the keyboard is powered on, the code will be automatically adjusted, and it can be used normally. 4. When carrying or not in use, you can also put the USB receiver into the receiver slot at the bottom of the mouse. 1 x Mouse 1 x Keyboard(Keycap color random) 1 x Manual 1 x Receiver