This cute cartoon mouse looks good and easy to use -The round and streamlined shape fits the curve of the hand, and the hands of both boys and girls Can be used, always enjoy the comfort of your palm! -2.4GHz wireless technology, providing reliable connection within 10m And without any interference, the transmission is stable and reliable. -1200PI tracking engine, responsive and smooth operation,Quickly click enough to accurately locate and no drop frames. -Long battery life,Work freely and play freely.(use it 6-8 hrs/day,and it can work about 3 months) -Portable and weight light,very convenient to carry and store -Auto sleep mode and power switch for save power How to use the 2.4G wireless mouse 1. Take the dongle out, which is in the battery compartment of the mouse. 2. Insert the dongle into the USB port of your PC. 3. Turn on the mouse, the switch is at the bottom of the mouse. 4. Allow a few seconds for installing, no action needed, just wait. Then you can use the mouse. Package include 1 x Wireless Mouse(Battery not included) 1 x USB receiver(Hidden in the battery compartment) 1 x Product User Manual