AirPods and AirPods Pro automatically switch between iPhone and iPad. If you turn off your iPad and start a call on your iPhone, they'll automatically switch to your iPhone. Don't like this feature? Here's how to turn it off.

How does automatic switching on AirPods work?
This feature was added in iOS 14, iPadOS 14, and macOS Big Sur. As long as your iPhone or iPad is updated to the latest version of the operating system and your AirPods are in your ears, device switching works automatically. (If not, try updating the firmware on your AirPods or AirPods Pro.)
Automatic device switching works with AirPods (2nd generation), AirPods Pro, Powerbeats, Powerbeats Pro, and Solo Pro.
In the traditional Apple sense, it “just works.” You don’t need to enable this feature. When your AirPods switch between devices, you’ll see a small notification about it. If you want, you can tap the blue “Back” button to switch back to the previous device.
How to turn off automatic switching for AirPods and AirPods Pro
If you often use your iPhone, iPad, and Mac together (for example, while working at your office), it can be annoying when your AirPods automatically switch between devices.
Fortunately, you can disable AirPods switching and go back to manually switching between devices.
You'll need to disable this feature on a per-device basis. First, connect your AirPods to your iPhone or iPad and open the Settings app.

On the Settings screen, tap the “Bluetooth” section.

Now, find your AirPods from the list and tap the small icon next to your AirPods.

Here, select “Connect To This iPhone” or “Connect To This iPad”, depending on your device.

From this section, select the option “When Last Connected To This iPhone” or “When Last Connected To This iPad”.

You have now disabled the auto-switching feature for AirPods. Go to your iPad and repeat this process.
How to switch devices manually
You can manually switch between iPhone or iPad using Control Center. Swipe down from the top right corner of your iPhone or iPad to reveal Control Center.

Here, tap the small “AirPlay” icon to display all available devices.

Now, select your AirPods to switch to them.

Information source: howtogeek.com
