The Dell Pro Mobile Wireless Mouse MS5120W User's Guide provides instructions on how to set up and use the mouse. The mouse has the following features: 1. Dell Universal Pairing, which allows you to connect devices to your wireless mouse. 2. Bluetooth, which allows you to connect a second device to your wireless mouse. 3. Battery status indicator, which allows you to know the battery status of your mouse at any time. 4. Optical sensor, which allows for precise mouse control. 5. Connection mode indicator, which allows you to know the connection status of your mouse at any time. 6. Connection mode button, which allows you to easily switch between devices with your mouse. 7. Power switch, which allows you to easily turn your mouse on or off.