Number of keyboards: 104 keys Mouse: 4 keys Product interface: interface device USB interface to receive Connection mode: wireless 2.4/10m connection range Transmission method: wireless Number of wheels: 4 Color: blue/pink/black/white DPI adjustment: 800/1200/1600 three-speed adjustment Waterproof function: support Product size: keyboard: 435X125X23mm mouse: 100X50X30mm Weight: keyboard 350g mouse: 95g System support: Winodws XP/Winodws Vista/Window7/8/10 ✔ Combination of wireless keyboard and mouse: It includes a full-size keyboard and a precise mouse, so you can work comfortably away from your computer or laptop. Compatible with Window XP, Vista, win7, win8, win10. ✔ Reliable 2.4GHz wireless connection: the keyboard and mouse are plugged in and put in the USB receiver without installing any additional software, ensuring a strong and reliable connection. ✔ Ultra-thin aluminum design: The keyboard is made of durable aluminum, with an ultra-thin and compact design. The mute button allows you to enjoy comfortable and smooth typing and clicking. Hot keys keep access to applications and media controls within easy reach. ✔ Adjustable DPI switch: easily adjust the sensitivity of the mouse between 3 DPI levels (800/1200/1600) to meet the needs of ordinary and gaming. The optical can respond quickly, move accurately, and track smoothly. ✔ Use equipment: The mouse is a No. 5 battery, and the keyboard is a No. 7 battery, which is easy to buy in the supermarket.