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If one of your function keys has an Airplane symbol on it, then the button will toggle Airplane mode on Windows 10. You’ll have to look a bit closely to see how the manufacturer has distinguished the two. They’re in pairs where one decreases the screen brightness while the other one increases it. They normally feature what can best be described as a ‘sun’. These too are common symbols you’ll find on the function keys. The symbols for them look more or less the same and they’re easy enough to identify. The media keys are the easiest to identify: there are usually six of them the mute key, the volume up key, the volume down key, a play/pause button, a play next button, and a play previous button. Not all laptop manufacturers use the same symbols so, here’s a brief guide to what the symbols on functions keys mean. All laptops will generally use the function keys as media keys, and brightness control keys but it still leaves a few extra keys left over. Laptops are manufactured by different companies (Dell, HP, Acer, Sony, etc.). Rarely is the symbol on a key ever changed. On MacBooks, the symbols on function keys mean the same thing regardless of model. MacBooks have them, and laptops have them. The function keys, or the Fn keys are standard on any laptop.
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