1、Wireless keyboard and mouse set, 104‑key keyboard, 5‑key mouse. Compatible for Windows XP/win7/win8/win10. 2、With one USB drive, which can drive the keyboard and mouse at the same time, convenient for using. 3、Improved membrane keyboard, key caps can be removed, high key position design brings mechanical feel, low noise. 4、Multimedia buttons, the FN+multimedia composite buttons can realize quick operations such as play/pause and volume adjustment. 5、An adjustable bracket is designed at the bottom of the keyboard to make the wrist at a relaxed angle, which ensures the flexibility of the fingers, while also taking into account the clarity of the viewing angle. Item Type: Keyboard Mouse Set Material: ABS Number of Keyboard Keys: 104 keys Number of Mouse Buttons: 5 buttons System Requirements: for Windows XP/win7/win8/win10 Multimedia Function Key: Yes Keyboard and Mouse Interface: USB Keyboard Battery: 1 x AA battery (not included) Mouse Battery: 1 x AA battery (not included) How to Use: 1. Take out the USB receiver from the bottom of the mouse and plug it into the USB port of the computer. 2. Open the battery cover at the bottom of the mouse, and put an AA battery (not included) into the battery compartment (note that the positive and negative polarity of the battery must be correct) The LED light at the bottom of the mouse will light up once and then go out, close the battery cover. 3. Open the battery cover at the bottom of the keyboard, put an AA battery (not included) into the battery compartment, pay attention to the positive and negative polarity of the battery must be correct), close the battery cover. 4. You can also put the USB receiver into the receiver slot at the bottom of the mouse when it is carried out and not in use. 1 x Mouse 1 x Receiver 1 x Keyboard 1 x Manual