Specifications: Model: M900 Type: Wireless mouse Mouse size: ordinary mouse (100-120mm) Connection with the computer: Wireless Applicable models: laptop Optical resolution: 1600DPI Number of buttons: 4 Compatible system: Win2000, WinNT4.0, WinXP, Win.NET , Win7/8/10, for Mac OS X10.8 Charging interface: Type-C Three DPI switches: 800-1200-1600DPI Wireless transmission frequency: 2.4GHz Whether to support ergonomics: support Resolution adjustable: three gears and below Operating distance: 15 (m) Working mode: photoelectric Roller direction: four-way roller Product size: 120 x 80 x 35mm Product weight: 0.18KG