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.

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

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