IN THIS ARTICLE
You keep seeing hall effect mouse and magnetic switch on spec sheets, and nobody explains what actually changed. The answer sits in one small part under each button, and it's easier to follow than the names suggest.
In short
- What it is: a mouse whose buttons sense each press with a magnet and a tiny sensor, so no metal contacts have to touch.
- Why it matters: the mouse knows how far each button is pressed, so you can choose where a click counts.
- What to do: use it as it comes first, then adjust one setting at a time in the mouse's software.
What a hall effect mouse switch is
Under every mouse button sits a small switch. You press the button, the switch fires, and your computer receives a click.
Many mice use a mechanical micro switch, a tiny box holding a plunger, a thin metal leaf spring, and two metal contacts. Your press makes the spring snap over, and that snap is the click you hear and feel. The same snap pushes the two contacts together, which closes a circuit and sends the signal.
A hall effect switch swaps those contacts for a magnet and a Hall sensor, a chip that measures magnetic field strength. As you press, the magnet moves closer to the sensor, and the reading climbs.
Think of a light switch on the wall next to a dimmer. The light switch only knows two states, on or off. The dimmer knows exactly how far you've turned it. A micro switch behaves like the light switch, and a magnetic switch behaves like the dimmer.
You'll also see the same part called an HE switch or simply a magnetic switch. All three names describe one idea.
How a magnetic switch registers a click
Here is what happens inside a magnetic switch during a single press, one step at a time.
- You press the button. Something mechanical still gives the feel, and in Keychron's MagOptic switch that's a metal leaf spring.
- The magnet moves toward the sensor. The Hall sensor reads a stronger field the further down the button travels.
- The click counts at a set depth. That depth is the actuation point, and on a magnetic switch you can move it.
- You lift your finger. The magnet moves away, the reading drops, and the button is ready for the next press.
Now compare that with the micro switch. When its two metal contacts meet, they bounce apart and back for a tiny moment. That flicker is called contact bounce, and the mouse waits for it to settle before counting the click. The wait is called debounce. On supported Keychron mice, Launcher lets you set the debounce time yourself, from 0 to 20 ms.
A magnetic switch has no metal meeting in the signal path, so there's no bounce to wait out. Keychron describes the result as a cleaner, faster trigger signal with no debounce step.
Because the sensor follows the button's depth the whole way, it also makes Rapid Trigger possible. The button resets the moment your finger starts to lift, without waiting to pass a fixed point.
What changes when you use a magnetic switch
Side by side, a micro switch and a magnetic switch can feel almost the same under your finger. The difference is what happens after the snap: one waits for metal to settle, the other just reads a magnet.
Feel. The click doesn't have to change. A magnetic switch can keep a leaf spring purely for the snap you feel, while the sensor handles detection in the background. Keychron's MagOptic switch works this way in Magnetic Mode, so the click stays crisp and defined.
Latency. Dropping the debounce wait removes a small delay from each click. Total click latency still depends on the whole mouse, including its connection and polling rate. Polling rate is how often the mouse reports to your computer. For reference, the G6 HE averages 0.188 ms of click latency wired at 8K polling. Over its 2.4 GHz receiver at 8K, the average is 0.382 ms.
Lifespan. In a micro switch, the metal contacts rub against each other every time they meet. Over a very long life of clicking, that wear can make an aging switch read one press as two. A magnetic switch detects the press without contact, so that kind of wear never reaches the signal. Keychron's MagOptic switch has a click lifespan target of 100 million clicks.
Control. This is the part you'll notice most from day to day. A shallow actuation point fires the click on a light touch, so your input registers sooner. A deep point makes it less likely that a resting finger clicks by accident. Rapid Trigger helps when you tap the same button quickly, because each follow-up click is ready sooner.
For email, spreadsheets, and browsing, a well-made micro switch does its job nicely, and quiet versions suit shared rooms. The extra control matters most when you care about exactly when each click fires.
Where Keychron uses this switch
Keychron's hall effect mouse switch is called MagOptic, and one switch can run in two modes. In Optical Mode, it reads the press with light, like a traditional optical mouse switch, with a familiar crisp click. In Magnetic Mode, the Hall sensor takes over detection, and adjustable actuation and Rapid Trigger become available. Both modes detect the press without any metal contact. The MagOptic switch page covers the background in more detail.
The first mouse with MagOptic inside is the Keychron G6 HE. You switch between the two modes in the HE Mode tab of Keychron Launcher. The panel sums up the actuation slider in one line: shallower is faster, deeper means fewer mis-clicks. Your settings save to the mouse itself, so they travel with you to another computer. Our G6 HE Launcher guide walks through each screen if you'd like a closer look.
One r/MouseReview user described Magnetic Mode well: it "decouples the physical click from when the click is actually detected."
What to try first: Magnetic Mode, a middle actuation point, and the Rapid Trigger slider left where it starts.
Common questions about hall effect mouse switches
Does a hall effect mouse still click?
It depends on the design. Keychron's MagOptic switch keeps a metal leaf spring in Magnetic Mode, so you still get a crisp, defined click.
Is this the same technology as a haptic mouse?
No. A haptic mouse replaces the physical click with a small motor that vibrates when you press, so what you feel is a buzz, with no moving switch underneath. A MagOptic switch (optical + Hall effect / magnetic switch) keeps a real metal leaf spring for the click and, in Magnetic Mode, uses a magnet and a sensor only to detect the press. You get a mechanical snap with magnetic detection, not a vibration.
Can a magnetic switch help with double-clicking?
Double-clicks from an aging switch usually trace back to worn metal contacts. MagOptic detects the press without contact in both modes, which reduces the wear behind that problem.
Do I need to install software to change the settings?
No installation is needed. Keychron Launcher is a web app, so you open it in a current Chrome, Edge, or Opera browser. Connect the mouse with its cable or 2.4 GHz receiver, and the settings appear.
References & Citations
- How MagOptic works: Optical and Magnetic modes, no contact bounce, no debounce, adjustable actuation, Rapid Trigger, and wear. (Keychron MagOptic switch)
- G6 HE click latency at 8K, the 100M click lifespan target, the first MagOptic mouse, and Launcher settings saved to the mouse. (Keychron G6 HE product page)
- Debounce time on Keychron mice, set in Launcher from 0 to 20 ms. (How to set mouse debounce time on Launcher)
- Step-by-step G6 HE setup in Keychron Launcher. (How to customize the G6 HE in Keychron Launcher)
- A player's plain description of what Magnetic Mode does to the click. (r/MouseReview, July 2026)