DUAL MODE BLUETOOTH-compatible MOUSE. Mode A: Insert the USB receiver into the USB port and switch the mouse switch to 2.4G. Mode B: Switch the mouse switch to Bluetooth-compatible, press the pairing button for 2-3 seconds, the computer Bluetooth-compatible will find the mouse and pair it. 3 Kind Of DPI Adjustable: 800/1200/1600 DPI resolutions. Widely Compatibility: The mouse is well compatible with Macbook, PC, iPad, computer and mobile phone.