1、Detachable Keycaps: Individual keycaps can be removed and put into water for cleaning, bottom sealing membrane technology makes typing sound like laptop keys, mouse DPI adjustable (800, 1200, 1600). 2、Stable Transmission: 2.4GHz signal provides a connection range of up to 28 feet, allowing you to work with your computer from a distance. A small USB 2.0 receiver connects the mouse to the keyboard, ensuring its stable and glossy transmission. 3、68 Keys Design: Ergonomic tilt angle, suitable for palm, 68 keys compact keyboard design, easy to use, reliable and comfortable. 4、Battery Powered: The wireless keyboard and mouse are battery powered (without batteries), ensuring a battery life of up to 12 months, when idle for 5 minutes, both the keyboard and mouse will automatically go to sleep, just click any button to wake it up. 5、Wide Compatibility: The mouse and keyboard are perfectly compatible for Windows 10/8/7/XP, for Vista OS (USB 2.0 port), and can be used with PC, desktop,laptop, computer, etc. Item Type: Typewriter Keyboard and Mouse Combo Material: ABS Keyboard Battery: 2xAAA (Battery Not Included) Mouse Battery: 1xAA (Battery Not Included) Keyboard Keys: 68 Keys Connection Technology: Wireless (2.4G) DPI Level: 800/1200/1600 System Compatibility: For Windows 7, 8, 10/11, for OS X, Destop, PC, Laptop, etc. 1 x Keyboard (Battery Not Included) 1 x Mouse (Battery Not Included) 1 x Receiver 1 x User Manual