Airplane mode is a setting available on smartphones, tablets, and other portable devices that disables the device’s ability to send or receive wireless communications while allowing it to be used for other functions. This mode is particularly useful — and in some instances, required by law — when you’re on an airplane. Activating airplane mode is crucial during takeoff and landing because the radio signals used for calls, texts, and data connections could potentially interfere with aircraft equipment.

The main functions that are disabled when you turn on airplane mode include cellular networks (so you can’t make phone calls or receive them), Wi-Fi, GPS services, and Bluetooth. However, it’s often possible to turn Wi-Fi and Bluetooth back on independently while leaving airplane mode active if these functions are needed — for instance, many airlines offer in-flight Wi-Fi service.

Enabling or disabling airplane mode is quite simple:

For iOS Devices:

1. Swipe up from the bottom edge of the screen (or swipe down from the top right corner on an iPhone X or later) to access the Control Center.

2. Look for an icon resembling an airplane.

3. Tap the airplane icon; it will light up when airplane mode is activated.

4. To turn off airplane mode, simply tap the icon again so that it’s no longer highlighted.

For Android Devices:

1. Swipe down from the top of the screen to pull down the notifications shade.

2. You may need to swipe down again to reveal a full set of quick settings tiles.

3. Look for an icon depicting an airplane.

4. Tap the airplane icon; when activated, the tile usually highlights in a different color.

5. To disable airplane mode, tap the icon once more so that it goes back to its default state.

On both platforms, you can also go into the ‘Settings’ app and toggle airplane mode on or off from there:

– On iOS: Go to “Settings” > “Airplane Mode” and switch the slider to on (green) or off.

– On Android: Go to “Settings” > “Network & Internet” > “Airplane mode” and switch the toggle accordingly.

While in airplane mode, you can continue to use your device for activities such as watching downloaded videos or listening to downloaded music, playing games that don’t require an internet connection, editing documents stored on your device, etc.

In conclusion, airplane mode is a handy feature that minimizes potential interference with sensitive electronic equipment found in airplanes while allowing users to still enjoy various features of their personal devices during flights. Enabling it is just a tap or two away no matter what type of device you own.