Pebble Mouse 2 M350s improvements vs M350: latest Bluetooth 5.1 with added support for Logitech Bolt receiver; can pair up to three devices instead of two; customizable middle button that supports shortcuts (ex. Emoji menu, dictation, gesture, etc) Pebble Mouse 2 M350s improvements vs M350: APP profiles shortcuts for apps (ex.WhatsApp, Spotify,, etc); 4000 DPI sensor vs 1000 DPI sensor; 2-year battery life (vs 18 months); Logi Options+ support (APP profiles, low battery notifications, etc) Easily Hop Across 3 Devices: Use Bluetooth to connect up to 3 wireless devices across OSs (Windows, macOS, iPadOS, ChromeOS), and switch between them with the mouse’s Easy-Switch button Save Time: Personalize the middle button with Logi Options+ app (2) to do more with Pebble Mouse 2; add shortcuts for your favorite apps, including WhatsApp and Spotify Make a Big Impression on the Quiet: Let your work speak louder than your clicks; Pebble Mouse 2 M350s is a quiet mouse with Silent Touch Technology that removes 90% click noise (3) Go for Longer: The wireless mouse gives you hours of use, 2 years of battery life (4) and auto-sleep power-saving mode for worry-free usage; battery included A Design Choice You’ll Feel Good About: Plastic parts in Pebble Mouse 2 M350s Bluetooth Mouse includes minimum 58% certified post-consumer recycled plastic