Feature:1. 2.4GHz Wireless Technology: Using 2.4GHz wireless technology, the USB receiver can be plugged in to connect and start the keyboard to use, no other software installation, no delay or dropped calls.2. Retro Circular Key Design: All keys are removable, and the retro circular key design takes you back to the original typewriter style.3. Automatic Power Saving Mode: If you do not use the keyboard and mouse, the keyboard and mouse will automatically go into sleep mode to save energy and greatly extend battery life. Click any key or button to reactivate.4. Colorful Stylish: The wireless keyboard and wireless mouse are colorful, fashionable and beautiful, attracting more people's attention.5. Wide Compatibility: Fully compatible with for Windows 10, 8, 7 and for XP operating systems. It is applicable to PC, desktop computer, loptop.Specification:Item Type: Wireless Keyboard Mouse ComboMaterial: ABSConnection Mode: Usb Receiver ConnectionNumber of Keys: 86Keyboard Size: Approx. 313 x 141 x 39mm / 12.3 x 5.6 x 1.5inMouse Size: Approx. 111 x 59 x 27mm / 4.4 x 2.3 x 1.1inMouse Dpi: Up to 1200Keyboard Battery: 1 x AA (not Included)Mouse Battery: 1 x AA (not Included).Package List:1 x Keyboard1 x Mouse1 x USB Receiver1 x User Manual