ERGONOMIC DESIGN Good surface coating technology given you a skin-like touch feeling. User-friendly design provide all-day comfort for work and entertainment, portable and pocket-sized perfect for travel, Mute design keeps away annoying clicks. For all computers and laptops and ios13 / ios14 tablet/pro/Air / Phone / MAC / MacBook / Pro / air windows / chromebook / HP / Dell Use the DPI mouse button on the screen: you are free to adjust the mouse sensitivity to match your activity. Provide 3 DPI levels (800-1200-1600). The higher the DPI, the faster the cursor moves on the screen 7-color LED mouse: After the mouse is successfully connected to your computer/laptop/iPad device, the 7-color LED starts to light one by one. BUILT-IN BATTERY: Built-in battery,easy to charge by micro usb cable,no more need for extra AAA battery.