How to Pair Bluetooth Devices With a Computer

In short

Bluetooth pairing is a one-time introduction between two devices. You put the accessory into pairing mode, choose it on your computer, and from then on they reconnect automatically. This tutorial shows how to pair headphones, speakers, mice and keyboards with Windows and Mac, how to switch audio between devices, and what to do when pairing fails.

Before you start

Bluetooth is a short-range wireless connection, usually reliable within one room. Unlike Wi-Fi, it connects two devices directly, without your router. If you’re new to wireless connections in general, our tutorial on connecting to Wi-Fi explains how your home network differs.

Every Bluetooth accessory has a way to enter pairing mode, when it announces itself to nearby devices. Often you press and hold the power button or a dedicated Bluetooth button until a light flashes, but this differs between products, so check the leaflet or the maker’s website. Headphones that are already paired to a phone may connect to the phone instead; switch Bluetooth off on the phone while you pair with the computer.

Key terms

Pairing: the first-time setup that lets two Bluetooth devices trust each other.
Pairing mode (discoverable): a temporary state in which an accessory can be found by new devices, usually shown by a flashing light.
Connected vs paired: paired devices remember each other; connected means they are actively linked right now.
PIN or passkey: a code some devices show to confirm you’re pairing the right one.
Audio output: where sound plays, such as laptop speakers or Bluetooth headphones.

Lesson 1: pair with Windows

Open Settings. In Windows 11, select Bluetooth & devices; in Windows 10, Devices > Bluetooth & other devices.
Make sure Bluetooth is switched on.
Put your accessory into pairing mode.
Select Add device (Windows 11) or Add Bluetooth or other device (Windows 10), then choose Bluetooth.
Choose your accessory from the list. If a PIN appears on both screens, check that they match and select Connect. A keyboard may ask you to type a code on it and press Enter.
Select Done.

Checkpoint: the device appears under your devices as Connected. For headphones, play a video and check the sound comes through them.

Windows 11 can also show a pop-up offering to connect some accessories as soon as they’re in pairing mode nearby (called Swift Pair); select Connect if it appears.

Lesson 2: pair with a Mac

Open the Apple menu and choose System Settings, then Bluetooth.
Make sure Bluetooth is on.
Put your accessory into pairing mode.
Find it in the list of nearby devices and click Connect. Accept any code shown.

Checkpoint: the accessory appears under My Devices as Connected.

Lesson 3: everyday use and switching

Reconnect: most accessories reconnect automatically when switched on near the computer. If not, open Bluetooth settings and select the device, or choose Connect.
Choose where sound plays: on Windows, select the speaker icon on the taskbar and choose the output; on a Mac, use the Sound control in Control Center or the menu bar.
Use a phone or tablet too: Android phones list Bluetooth devices in their Settings; Google’s help page in Official documentation explains the steps, which vary by phone maker. An accessory can usually be paired with several devices but connected to one at a time.
Remove a device: on Windows, select the three dots next to it and choose Remove device; on a Mac, click the details button and choose Forget This Device. Removing and pairing again fixes many problems.

For other device settings, see our tour of Windows Settings.

Check that it worked

Switch the accessory off and on again: it should reconnect on its own within a few seconds. For a mouse or keyboard, move the pointer or type into a document. For headphones, check the volume control on the computer changes their volume.

If something goes wrong

The device doesn’t appear in the list: make sure it’s in pairing mode (light flashing), close to the computer, and not connected to another phone or tablet.
Bluetooth is missing from Settings: the computer may not have Bluetooth, or its driver may need updating; check Windows Update and the computer maker’s support site. A USB Bluetooth adapter can add it to a desktop.
It pairs but there’s no sound: choose the headphones as the audio output, and check the volume on both the computer and the headphones.
Sound is choppy: move closer, reduce obstacles, and keep the computer away from the Wi-Fi router and other wireless devices.
It connected before but won’t now: remove the device from the computer, restart both, and pair again.
An unknown device asks to pair: decline it. Only pair accessories you own and have just put into pairing mode.

Microsoft’s and Apple’s help pages in Official documentation list further fixes, and the accessory maker’s support site covers model-specific resets.

FAQ

Do I need to pair my headphones every time?

No. Pairing is done once. After that, they reconnect automatically when switched on near the computer, unless they’ve connected to another device first.

Can I connect two Bluetooth headphones at once?

Most computers play audio through one Bluetooth device at a time. Some devices and newer standards support sharing, but it depends on the hardware.

Why does my Bluetooth mouse lag?

Low batteries, distance and interference cause lag. Replace or charge the batteries, move closer, and keep USB devices and metal objects from blocking the signal.

Is Bluetooth safe to leave on?

Generally yes for everyday use. Keep your devices updated, decline pairing requests you don’t expect, and switch Bluetooth off if you never use it.

What’s the difference between Bluetooth and a USB wireless receiver?

Some mice and keyboards come with a tiny USB receiver that you plug into the computer. They connect to that receiver rather than using Bluetooth, so there’s no pairing step: plug in the receiver and switch the device on. Bluetooth accessories need no receiver, which frees up a USB port, but they must be paired once as shown in this tutorial.