Magspeed Adaptive Scroll-Wheel - Logitech MX Master 3 Manual

Your mouse can be paired with up to three different computers using the easy-switch
button to change the channel.
1. A short press on the Easy-Switch button lets you switch channels. Select the
channel you want and go to the next step.
2. Press and hold the Easy-Switch button for three seconds. This puts the mouse in
discoverable mode so that it can be seen by your computer. The LED will start
blinking quickly.
3. Choose how you want to connect the keyboard to your computer:
Bluetooth: Open the Bluetooth settings on your computer to complete the pairing.
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You can find more details here.
USB receiver: Plug the receiver to a USB port and open Logitech Options. In
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Options, select Add devices > Setup Unifying device, and follow the
instructions.

MagSpeed adaptive scroll-wheel

The speed-adaptive scroll wheel shifts between two scrolling modes automatically. As
you scroll faster, it will automatically shift from line-by-line scrolling to free-spinning.
Line-by-line (ratchet) mode — ideal for precise navigation of items and lists.
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Hyper-fast (free-spin) mode — near-frictionless spinning, letting you fly through
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long documents and web pages.