Improvements over the Pebble Mouse 2 M350 include: new Bluetooth 5.1 with support for the Logitech Bolt receiver; the ability to pair three devices rather than two; Adaptable middle button with shortcut support (e.g., gesture, dictation, emoji menu, etc.) Improvements over the Pebble Mouse 2 M350 include: APP profiles shortcuts for apps (like Spotify, WhatsApp, etc.); a 4000 DPI sensor instead of a 1000 DPI sensor; a 2-year battery life instead of 18 months; and support for Logi Options+ (such as APP profiles and low battery alerts). Easily Switch Between Three Devices: Connect up to three wireless devices via Bluetooth across Windows, macOS, iPadOS, and ChromeOS, and use the mouse's Easy-Switch button to switch between them. Save time by using the Logi Options+ app (2) to customize the middle button and add shortcuts for