How to Connect a Bluetooth Mouse to Your Mac

Pairing a Bluetooth mouse takes under a minute when it goes right — and when it doesn't, the mouse simply never appears in the list, with no hint why. Here's the pairing flow for macOS 13, 14, and 15, the settings worth touching immediately after, and the fixes for a mouse that refuses to show up.

Pair the mouse

1. Put the mouse in pairing mode. Turn it on, then press or hold its pairing button until an LED starts blinking. Every brand hides this differently — often a small button on the underside, sometimes holding a channel button for three seconds. A mouse that isn't blinking isn't discoverable, and this is the step most failed pairings die on.
2. On the Mac, open System Settings → Bluetooth and confirm Bluetooth is on.
3. Wait for the mouse under Nearby Devices — usually a few seconds.
4. Click Connect. It moves up to My Devices and the pointer is live.

From now on the mouse reconnects automatically whenever it's switched on near your Mac — pairing is a one-time event. Multi-device mice (with channel numbers 1/2/3) remember one computer per channel; give your Mac its own channel and switching between machines becomes a button press.

Set it up properly — two minutes now saves weeks of friction

Open System Settings → Mouse with the new mouse connected:

• Tracking speed — the default is conservative; most people prefer a notch or two faster.
• Natural scrolling — with a scroll wheel, "natural" feels inverted to most wheel users. If scrolling feels backwards, this is the switch.
• Primary mouse button — Left by default; set Right for left-handed use.
• Double-click and scroll speed — hiding in System Settings → Accessibility → Pointer Control → Mouse & Trackpad, if double-clicks misfire or the wheel feels sluggish.

Extra thumb buttons on gaming mice generally need the manufacturer's own software for remapping — macOS sees the basic buttons and wheel without it.

When the mouse never appears

Work down this list — it's ordered by how often each one is the answer:

1. Pairing mode expired. Most mice give up blinking after 30–60 seconds. Re-trigger pairing mode and watch the list again.
2. It's paired to something else. A mouse bonded to your old laptop, iPad, or a dongle won't advertise to your Mac. Unpair it from the other device (or switch to a free channel), then retry.
3. Check the battery. Blinking takes power; a nearly dead cell can leave the mouse too weak to complete pairing. Charge it or swap batteries.
4. Toggle Bluetooth off and on in System Settings, wait ten seconds, and rescan.
5. Move away from USB 3 hubs. They radiate 2.4 GHz noise that drowns out Bluetooth at close range — pairing across the desk sometimes succeeds where pairing next to a hub fails.
6. Restart the Mac. Reloads the Bluetooth stack; the classic fix for a scan that finds nothing at all.

One category check before you troubleshoot at all: mice that ship with a USB receiver dongle often aren't Bluetooth — they use a proprietary radio. If your mouse came with a tiny USB plug, put that in the Mac and the mouse works instantly, no Bluetooth pane involved (some models support both; the Bluetooth route needs the pairing-mode step above).

If it pairs but performs badly

Lag, stutter, or dropped connection after successful pairing is a different problem — interference and power settings, mostly. Keep the Mac's USB 3 devices away from the mouse's line of sight, charge the mouse, and if stutter persists, unpair (ⓘ → Forget This Device) and re-pair fresh — a clean bond fixes more than it should.