Logitech M350s Pebble Wireless Mouse - Tonal White - Number of Buttons: 3 - Customizable button with Logi Options+ App: 1 - Sensor Technology: High-precision optical tracking - DPI range: 400-4000 dpi (Fully adjustable with 100DPI increments) - Connection Type: Bluetooth Low Energy Technology - Wireless range: 10m - 1x AA battery (Alkaline Battery); On/off power button - Battery life: 24 months - 910-006986