SODIAL(R) Wireless Bluetooth Optical Mouse Mice Receiver with DPI Switch for PC Laptop Macbook Advanced Bluetooth technology eliminates the need for a separate receiver. Optical mouse with high resolution up to 1000dpi . Wireless range up to 10 meters (3.3ft). Sleep mode and On/Off switch for saving energy. Ergonomic design, very comfortable to use. Compatible with windows 98, SE, 2000, XP, Vista, windows 7 and server 2003. Works with Mac OSX v10.2.6, only if your MAC has Bluetooth function. Please take a Bluetooth dongle first if your computer does not have Bluetooth function.(Bluetooth dongle is not included).