---
title: "Bluetooth headphones slow Mac Wi-Fi or stutter: fix interference · Kilobat Guides"
url: "https://kilobat.app/guides/bluetooth-wifi-interference"
description: "Bluetooth and 2.4 GHz Wi-Fi share one band. Learn the signs of interference on a Mac and the steps Apple recommends to reduce it."
---

Wi-Fi

# Bluetooth headphones and Wi-Fi interference on a Mac

Bluetooth and 2.4 GHz Wi-Fi use the same radio band. When both are busy, Wi-Fi can slow down and Bluetooth audio can skip.

Applies to: All current macOS versions. The System Settings steps are for macOS 13 Ventura and later. · Checked: 29 October 2026

## Symptoms

- Bluetooth audio skips, stutters, cuts off or has static.
- Wi-Fi becomes slow when you connect Bluetooth headphones.
- The mouse or trackpad pointer moves in jumps.
- The problem is worse near USB 3 drives or hubs.

## Likely causes

- **Shared 2.4 GHz band.** Apple says that both Bluetooth and Wi-Fi devices use the 2.4 GHz band.
- **USB 3 and Thunderbolt 3 devices.** Apple says that these devices and their hubs can interfere with nearby wireless devices.
- **Distance and obstacles.** Bluetooth devices far from the Mac, or behind metal, need more retries.
- **Other sources.** Apple lists power cables, microwave ovens, fluorescent lights, wireless video cameras and cordless phones.

## How to check

1. Hold the Option key and click the Wi-Fi icon. Make sure of the band of the network.
2. If the band is 2.4 GHz, interference with Bluetooth is possible.
3. List the connected Bluetooth devices.

   ```
   system_profiler SPBluetoothDataType
   ```
4. Disconnect the Bluetooth device for a test. If Wi-Fi becomes faster, interference is likely.

## How to fix it

1. Connect the Mac to a 5 GHz network, if the router has one. Apple suggests moving more Wi-Fi devices to 5 GHz.
2. Bring the Bluetooth device closer to the Mac.
3. Use a shielded USB or Thunderbolt 3 cable for each device.
4. Move USB 3 and Thunderbolt 3 devices and hubs away from the Mac. Do not put them on top of the Mac.
5. Turn off USB 3 devices that you do not use.
6. On the router, set 2.4 GHz to a channel width of 20 MHz. Apple recommends this to reduce interference.

## With Kilobat

1. List the Bluetooth devices, and show which share 2.4 GHz with the Wi-Fi.

   ```
   kilobat bluetooth
   ```
2. In the Kilobat Wi-Fi menu, choose Show Bluetooth devices. A 2.4 GHz tag marks devices that share the band.
3. The menu then offers a shortcut to a known 5 GHz network.
4. To measure short latency spikes, see [Test for call stutter](https://kilobat.app/guides/recipes/test-call-stutter).

## Questions

**Does 5 GHz Wi-Fi remove all Bluetooth interference?**

It removes the shared band. Distance, obstacles and USB 3 noise can still affect Bluetooth.

**Do AirPods count?**

Yes. All Bluetooth audio devices use the 2.4 GHz band.

## Sources

- [Apple Support: Resolve Wi-Fi and Bluetooth issues caused by wireless interference](https://support.apple.com/en-us/102319)
- [Apple Support: Recommended settings for Wi-Fi routers and access points](https://support.apple.com/en-us/102766)
- system_profiler(8), man page installed with macOS 27.2

Sources checked on 29 October 2026. Man pages are the ones installed with macOS; open one with `man <name>` in Terminal.

## Related guides

- [2.4 GHz, 5 GHz and 6 GHz Wi-Fi on a Mac](https://kilobat.app/guides/wifi-bands-2-4-5-6-ghz): Wi-Fi uses three bands.
- [AirDrop, AWDL and latency spikes in games and calls](https://kilobat.app/guides/awdl-airdrop-latency-spikes): AWDL is the Apple Wireless Direct Link.
- [Video calls stutter or freeze on a Mac](https://kilobat.app/guides/video-call-stutter-mac): Calls need steady latency and steady upload more than high speed.
- [Test for call stutter](https://kilobat.app/guides/recipes/test-call-stutter): A speed test averages its pings, so short spikes disappear.