2.4G Wireless Mouse: Plug and play. Just need 1 minute to connect the mouse, Take out the usb receiver from the back of the mouse and turn on the mouse, then plug the usb receiver into the usb port of computer/laptop/Mac. It will be connected and ready to be used. Mouse Jiggler: Long press the DPI button for 3 seconds to enter "Mouse Jiggler Mode". The mouse produces random movements on the screen and it is very quiet in Jiggler Mode. This would be a Mouse mover which give you a little breathing room without having to worry about logging back into all your programs again if you step away from your PC. It is undetectable, the cursor is under your control. It will enter Jiggler mode again after 5 seconds of inactivity. Rechargeable Mouse with RGB Backlit: Long press the light mode switch button for 3 seconds to turn on/off the backlight. Short press the light mode switch button, a total of 21 light modes will shown in cycle. It is equipped with a 650mA rechargeable battery. You do not need to change batteries always. Silent Mouse with 4 DPI adjustable: 800-1200-1600-2000 DPI, you can press the DPI button to change the DPI. Red for 800, Blue for 1200, Green for 1600, Purple for 2000, The different light can let you know which DPI the mouse stays on. When you use the mouse, you can hardly hear any noise. Provide an ultra-quiet working environment for you and the people around you. Wide Compatibility and Warranty: The wireless mouse is compatible with Mac OS and Windows system. And 2-year Warranty is provided. Refund and replacements are provided for defective products. Please feel free to contact us.