With the ergonomic design, the 2.4G wireless mouse is suitable for home or office use. It has a mini size, which is easy to carry. The mouse has large compatibility that is compatible for Windows and for Mac systems. Item Name: Wireless Mouse Material: ABS Model: G833 Buttons: 4 DPI: 800/1200/1600/2000 Button Service Life: 20 Million Wireless Transmission Space: 10m Battery: 1 x AA Battery (Not Included) Supported Systems: for Windows, for Mac Features: Wireless, Large Compatibility, Portable Size: 115mm x 66mm x 36mm/4.53" x 2.6" x 1.42" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Mouse 1 x USB Receiver