Daffodil WMS320R Wireless Optical Mouse 2.4GHz - Cordless 5 Button PC Mouse with Scrollwheel and Adjustable Sensitivity (MAX 1600dpi) - For Laptop / Netbook / Desktop Computers - Supported by: Microsoft Windows (8 / 7 / XP / Vista) and Apple MAC (OS X +) - Battery Powered (2xAAA Inc.) (Red) Nano Receiver  Small enough to be left plugged in during transport 2.4GHz Radio Frequency Connection  Reliable operation from up to 10m 1600dpi Optical Sensor  Works on any non transparent surface Adjustable DPI  On the go adjustment of cursor sensitivity for precise control Ergonomic 5 Button Design  Comfortable use for right handed operators