What you need before you start

A wireless mouse connects to your computer without a cable, using either a small receiver that plugs into a USB port or a direct connection through Bluetooth. Before you begin, check whether your mouse came with a receiver — most do, and it looks like a tiny USB stick. If your mouse uses Bluetooth instead, your computer needs to have Bluetooth built in, which most laptops do but many desktop computers do not.

You will also need fresh batteries. Open the battery compartment on the bottom of the mouse and check whether batteries are already inside. If they are, they may be old or installed incorrectly. Replace them with new AA or AAA batteries (check your mouse manual to see which size) and make sure the positive and negative ends are facing the right direction — the diagram inside the compartment shows you how.

Keep your mouse manual or the original box nearby. If you run into trouble, the manual will tell you exactly which button to press to put the mouse in pairing mode, and this step varies by brand.

Key Takeaways

  • Wireless mice use either a USB receiver or Bluetooth; check which type yours is before you start.
  • Install fresh batteries in the mouse first, making sure the positive and negative ends face the correct direction.
  • For a receiver-based mouse, plug the receiver into any available USB port and the mouse should connect automatically within a few seconds.
  • For a Bluetooth mouse, turn on Bluetooth in your computer settings, press the pairing button on the mouse, and select it from the list of devices.
  • If the mouse does not respond, restart your computer and try again, or replace the batteries and check that the receiver is fully inserted.

Connecting a mouse with a USB receiver

A receiver-based wireless mouse is the simplest to set up. Locate the small USB receiver that came in the box — it is usually about the size of a lighter and has a USB connector on one end. Plug it directly into any USB port on your computer. On a desktop, this is usually on the back of the tower, but the front ports work just as well. On a laptop, use any available USB port on the side.

Once the receiver is plugged in, turn on the mouse by flipping the power switch on the bottom. Most mice turn on automatically and begin searching for the receiver. Within a few seconds, the cursor should move when you move the mouse. If nothing happens, wait 10 more seconds — sometimes the connection takes a moment to establish.

If the mouse still does not work, unplug the receiver and plug it back in firmly. Make sure it is pushed all the way into the port. Then turn the mouse off and back on again. This simple restart fixes most connection problems.

Connecting a mouse with Bluetooth

A Bluetooth mouse does not need a receiver — it connects directly to your computer's built-in Bluetooth radio. First, check that your computer has Bluetooth. On Windows, click the Start button, type "Bluetooth" into the search box, and look for "Bluetooth and other devices settings." On a Mac, click the Apple menu, select "System Settings," then click "Bluetooth." If you do not see a Bluetooth option, your computer does not have it built in.

Once you have confirmed Bluetooth is available, turn on your mouse and look for a small button on the bottom or side — this is the pairing button. Press and hold it for about 3 to 5 seconds until you see a light blink on the mouse. This puts the mouse into pairing mode, which means it is ready to connect to your computer. Check your manual if you cannot find the button; different brands hide it in different places.

Now go back to your computer's Bluetooth settings. You should see your mouse listed as an available device — it will usually show the brand name and model number. Click on it to connect. Your computer will pair with the mouse, and the light on the mouse should stop blinking and stay solid. The cursor should now respond to your movements.

Troubleshooting when the mouse does not connect

If your mouse is plugged in or paired but the cursor is not moving, the first step is always to check the batteries. Open the battery compartment on the bottom of the mouse and remove the batteries completely. Wait 10 seconds, then reinsert them, making sure they are facing the right direction. Close the compartment and try moving the mouse again.

If that does not work, restart your computer. This clears out any software confusion and gives the mouse a fresh start. Shut down completely, wait 30 seconds, and turn the computer back on. Once it has fully booted, try the mouse again.

For a receiver-based mouse, try a different USB port. Some ports on older computers do not provide enough power, or they may be damaged. Unplug the receiver from its current port and try one on the opposite side of your computer, or try a different port on the same side.

For a Bluetooth mouse, forget the device and pair it again from scratch. On Windows, go to Bluetooth settings, find your mouse in the list, click it, and select "Remove device." On a Mac, click the X next to the mouse name. Then repeat the pairing steps above — press the pairing button on the mouse and select it from the available devices list again.

When to check your computer's USB ports

If you are using a receiver and the mouse worked at first but stopped working after a few days or weeks, the receiver may have come loose. Check that it is pushed firmly into the USB port. If it is, unplug it and look at the metal connector — if it looks bent or damaged, the port itself may be the problem.

Try plugging the receiver into a different USB port. If the mouse works in the new port but not the old one, that port is damaged and you should avoid using it for other devices. If the mouse still does not work in any port, the receiver itself may have failed, and you will need to contact the mouse manufacturer for a replacement.

Desktop computers usually have multiple USB ports, so you have options. Laptops have fewer ports, but you can use a USB hub — a small device that plugs into one USB port and gives you several more — if you need to connect multiple devices.

Connecting multiple wireless mice to one computer

You can connect more than one wireless mouse to a single computer, though most people only use one at a time. For receiver-based mice, each mouse comes with its own receiver, and you can plug multiple receivers into different USB ports. Each mouse will work independently.

For Bluetooth mice, you can pair multiple mice to your computer through the Bluetooth settings. Each mouse will appear in your list of paired devices. However, only one mouse cursor will be active at a time — whichever mouse you move last will control the cursor. This is useful if you want to switch between mice without unpairing them, but it does not let two people control the cursor simultaneously.

Frequently Asked Questions

Do I need to install software or drivers for a wireless mouse?

Most wireless mice work immediately without any software. Plug in the receiver or pair via Bluetooth, and the mouse should function right away. Some gaming mice or mice with extra buttons may come with software that lets you customize those buttons, but this is optional — the mouse will still work without it.

Can I use a wireless mouse with a tablet or phone?

Yes, if your tablet or phone has Bluetooth. Pair the mouse the same way you would with a computer — put the mouse in pairing mode and select it from your device's Bluetooth settings. Not all apps respond to a mouse cursor the way a computer does, but most will let you use it to navigate menus and select items.

Why does my wireless mouse cursor jump around or freeze?

This usually means the batteries are running low. Replace them with fresh ones and the problem should stop. If it continues, move the receiver or mouse closer to your computer — wireless signals can be blocked by walls, metal objects, or other electronics. Also check that nothing is between the mouse and receiver that could interfere with the signal.

How far away can I use a wireless mouse?

Most receiver-based mice work within 10 to 15 feet of the receiver, though this varies by brand. Bluetooth mice typically work within 30 feet, but the range decreases if there are walls or obstacles between the mouse and computer. If you are sitting far from your computer, a receiver-based mouse may work better than Bluetooth.

What should I do if I lost the USB receiver?

Contact the mouse manufacturer — many will send you a replacement receiver for free or a small fee. You will need to provide your mouse model number, which is usually on the bottom of the mouse or in the original box. Some manufacturers also sell replacement receivers online. Do not throw away the mouse; a new receiver will make it work again.