Features: 500- 100 0 Wireless Optical Mouse (Automatic) IPC USB 2.4 GHz Optical Technology Wireless, Interface: USB .Equipped with 2 AAA batteries, low power consumption. (Batteries are not included.) quite comfortable design for your hand touch Low battery indicator, indicator lights reminds you to replace the batteries. Works max within 10 meters Distance Energy saving technology High precision displacement capacity can improve your search speed Very easy to install, just plug the USB receiver, you can use. Compatible with operating system: Windows and Mac, All laptop or desktop Mini USB receiver is included, which can be carefully stored inside the mouse when not in use Package includes: 1 x 2.4 GHz Wireless USB Optical Mouse (Batteries are not included.) 1 x Mini receiver (Hidden in the bottom of the mouse) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.