. Dimensions Height 124.9 mm Width 84.3 mm Depth 51 mm Weight 141 g Technical Specifications Sensor Technology Darkfield high precision Nominal value 1000 DPI DPI (Minimal and maximal value) 200 to 8000 DPI (can be set in increments of 50 DPI) Buttons 7 buttons (Left/Right-click, Back/Forward, App-Switch, Wheel mode-shift, Middle click) Scroll Wheel Yes, with smart-shift Thumbwheel Yes Gesture button Wireless technology Advanced 2.4 GHz wireless technology Wireless operating distance 10m Battery Rechargeable Li-Po (500 mAh) battery Sustainability Space Gray 27% post-consumer recycled material Pale Grey plastics 22% post-consumer recycled material Paper Packaging FSC™ - certified Certified carbon neutral Part Number Space Gray   910-006571 Pale Gray  910-006572