AHAOMG(TM) Mini 3.0 Optical Slim Wireless Bluetooth Mouse Mice for WIN 7 8 Laptop Adopts advanced Bluetooth 3.0 technology, transmission distance is up to 10m (3.3ft). Support Windows XP/Vista/ WIN7/8, original Android 4.0 and above, MAC OS, etc. Compatible with: PC, Macbook, laptop, ultrabook, etc. No USB receiver is needed if your computer possesses Bluetooth function. But if your computer does not have this function, please take a Bluetooth dongle first. (Bluetooth dongle is not included) Designed with a DPI key to adjust its operation speed (800dpi, 1200dpi, 1600dpi).