WONFAST&reg; 2.4GHz RF Optical Wireless USB Mice Slim Mouse with DPI and Mini Receiver Switch for Apple Mac Macbook Pro Air PC All Laptop or Desktop (White) 2.4 GHz wireless mouse ideal for home or office use, Interface: USB Very Easy to Install, only plug your USB receiver then you can use Mouse is compatible with most laptop and desktop computers via USB receiver Optical tracking technology works on many different surfaces | DPI switch allows for adjustable sensitivity | Powered by two AA batteries (not included) Low-Battery Indicator, indicator lights reminds you to change the batteries. Works maximum within 10 METER distance