The two ways to connect a mouse to your Mac
You can connect a mouse to your Mac in two ways: Bluetooth wireless or USB wired. Bluetooth mice pair once and work without cables. USB mice plug into a port and work immediately with no setup. Which one you choose depends on whether you want the convenience of wireless or the simplicity of a plug-and-play connection.
Most modern mice are Bluetooth. Apple's Magic Mouse and Magic Mouse 2 are Bluetooth only. Third-party brands like Logitech, Microsoft, and Razer make both wireless and wired options. If your mouse came with a USB receiver (a small dongle), that's a wireless connection that doesn't use Bluetooth — it still plugs into a USB port but lets you move around without pairing.
Key Takeaways
- Bluetooth mice pair through System Settings on your Mac and connect automatically when powered on.
- USB wired mice work immediately when plugged in with no pairing or setup required.
- USB receiver mice (with a small dongle) plug into a port but don't need Bluetooth pairing.
- If your mouse won't pair, restart Bluetooth, forget the device, and try pairing again from System Settings.
- Most mice work with any Mac model running a recent version of macOS, regardless of the mouse brand.
Pairing a Bluetooth mouse to your Mac
Turn on your mouse and make sure it's in pairing mode. For most Bluetooth mice, this means pressing and holding a button on the bottom or side until a light blinks — check your mouse manual for the exact button and what the light should do. Some mice enter pairing mode automatically when turned on for the first time.
Open System Settings on your Mac. Click Bluetooth in the sidebar. Your Mac will start scanning for nearby devices. When your mouse appears in the list, click it. Your Mac will pair with the mouse and it should appear as "Connected" within a few seconds. Once paired, your mouse will connect automatically whenever it's turned on and in range.
If pairing doesn't work, make sure your mouse has fresh batteries or is charged. Move the mouse closer to your Mac — Bluetooth works best within 30 feet but can be blocked by walls or other wireless devices. If it still won't pair, restart your Mac's Bluetooth by turning it off and back on in System Settings, then try again.
Connecting a USB wired mouse
Plug the USB cable into any available USB port on your Mac. The mouse will work immediately — there's no pairing, no setup, and no waiting. Your Mac recognizes it as an input device right away. If your Mac doesn't have a USB-A port (newer models with only USB-C), you'll need a USB-A to USB-C adapter.
Wired mice are useful if you want zero setup time or if Bluetooth isn't working. They also never run out of battery. The trade-off is that you're tethered by a cable, which limits how far you can move from your Mac.
Using a USB receiver mouse
Some wireless mice come with a small USB receiver (dongle) instead of using Bluetooth. Plug the receiver into a USB port on your Mac. The mouse will connect to the receiver automatically — no pairing needed. This type of wireless connection is sometimes called 2.4 GHz wireless or proprietary wireless.
Receiver mice are popular because they work reliably without Bluetooth pairing, they have longer range than Bluetooth, and they work with older Macs that don't have Bluetooth. The downside is you need to keep the receiver plugged in and carry it if you move between computers.
Troubleshooting a mouse that won't connect
If your Bluetooth mouse won't pair, first check that Bluetooth is turned on in System Settings. Open System Settings, click Bluetooth, and make sure the toggle is on. If it's already on, turn it off, wait five seconds, and turn it back on.
Next, forget the mouse from your Mac and try pairing again. In System Settings > Bluetooth, find your mouse in the list, click the information icon next to it, and select "Remove". Turn your mouse off and back on, put it in pairing mode again, and pair it fresh.
If your mouse still won't connect, restart your Mac entirely. Shut down, wait 10 seconds, and turn it back on. Then try pairing again. If you're using a USB receiver mouse and it's not working, try plugging the receiver into a different USB port — sometimes a port has a power issue.
For wired mice that aren't working, try a different USB port. If the mouse still doesn't respond, the cable may be damaged or the mouse may be broken. Test the mouse on another computer if you can to confirm.
What to do if your mouse works but feels slow or jumpy
If your mouse connects but moves erratically or feels sluggish, the problem is usually interference or low batteries. For Bluetooth mice, move closer to your Mac and away from other wireless devices like routers or microwaves. Replace the batteries with fresh ones — low batteries cause lag and disconnections.
You can also adjust mouse speed in System Settings. Go to System Settings > Mouse and drag the Tracking speed slider to find a speed that feels right. This is separate from the pointer speed and lets you fine-tune how quickly the cursor moves across your screen.
If your mouse keeps disconnecting and reconnecting, forget it and pair again. Persistent disconnections usually mean the pairing is corrupted and a fresh pairing will fix it.
Compatibility: which mice work with which Macs
Most modern mice work with any Mac running macOS 10.15 or later, regardless of the mouse brand. Apple's Magic Mouse works with all recent Macs. Logitech, Microsoft, Razer, and other third-party brands make mice that are compatible with macOS.
Check the mouse packaging or the manufacturer's website to confirm macOS compatibility before buying. Some gaming mice or specialized mice may require software installation to use extra buttons or features, but basic mouse movement and clicking work without any software.
Older Macs without Bluetooth (pre-2005 models) can only use wired mice or USB receiver mice. If you have a very old Mac, a USB receiver mouse is often a better choice than trying to add Bluetooth.
Frequently Asked Questions
Can I use the same mouse with my Mac and my iPad?
Yes, if the mouse is Bluetooth. Pair it with your iPad the same way you pair with your Mac — through Settings > Bluetooth. You'll need to forget it from one device and pair it with the other to switch between them, or some mice let you pair with multiple devices and switch by pressing a button on the mouse.
Why does my mouse keep disconnecting from Bluetooth?
Low batteries are the most common cause. Replace them with fresh ones. If that doesn't help, forget the mouse in System Settings and pair it again. Persistent disconnections can also mean Bluetooth interference — try moving your Mac away from routers, microwaves, or other wireless devices.
Do I need to install software to use a third-party mouse on my Mac?
No. Any mouse will work for basic clicking and moving without software. Some brands offer optional software to customize extra buttons or adjust sensitivity, but it's not required. Check the manufacturer's website if you want to use special features.
What's the difference between a USB receiver mouse and a Bluetooth mouse?
A USB receiver mouse plugs a small dongle into your Mac and connects wirelessly to that dongle. A Bluetooth mouse pairs directly with your Mac without a dongle. Receiver mice often have longer range and more reliable connection, while Bluetooth mice are simpler because there's nothing extra to carry.
Can I use a Windows mouse on my Mac?
Yes. Most mice are designed to work with any computer — Windows, Mac, or Linux. Plug it in or pair it the same way you would on Windows. The only exception is mice with Windows-specific software, which won't install on macOS, but the mouse itself will still work for basic movement and clicking.