This optical mouse is plug and play so there is no need for any driving program. Ergonomic design makes it comfortable to touch and grip. 2.4GHz wireless transmission technology bring you quick response and high performance. The wireless mouse has 4 gears of DPI to be adjusted, which can meet your different using demands. It is made of ABS material and it is durable and reliable to use. The length of the wireless mouse is 125mm, width is 65mm and height is 82mm. The compatible systems include for Windows XP, for Windows 7/8/10, for Mac. The mouse is especially designed for left-handers and it can be used for home, office, etc. Item Name: Mouse Material: ABS Connection Mode: 2.4GHz Wireless/Wired Wireless Range: 10M Black A Battery: 2 x AAA Batteries(Not Included) Black B Battery: Built-in 600mAh Rechargeable Battery(Included) DPI: 800,1000, 1200,1600 (Adjustable) Number of Button: 5 (Left Button, Right Button, Advance Button, Back Button, DP Button) Compatible Systems: for Windows XP, for Windows 7/8/10, for Mac Features: Plug Play, 1600DPI, 2.4GHz Size Details: 12.5cm x 6.5cm x 8.2cm/4.92" x 2.56" x 3.23" (Approx.) Notes: 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. There are three types for you to choose: Black A is wireless mouse powered by 2pcs AAA battery (not included); Black B is wireless mouse with rechargeable battery; Black C is wired mouse. You can choose according to your needs. Package Includes: Black A/Black B: 1 x Wireless Mouse 1 x USB Receiver 1 x User Manual or Black C: 1 x Wired Mouse 1 x User Manual