Logitech Pebble Slim Silent Bluetooth Mouse M350s Graphite

Number of Buttons: 3 (Left/Right-click, Scroll-wheel with middle click) Customizable button with Logi Options+ App: 1 (scroll wheel with middle click) Customization app: Supported by Logi Options+ App on Windows and macOS Sensor Technology: High-precision optical tracking DPI range: 400-4000 dpi (Fully adjustable with 100DPI increments) Nominal value: 1000 dpi