Using a Magic Item
Activating. Activating some magic items requires a user to do something special, such as holding it and uttering a command word. The description of each item or item category details how an item is activated. See the rules on command words, consumables, spells, and charges.
Attunement. Some magic items require a creature to form a bond with them before their magical properties can be used. This bond is called attunement. There are limits to the type and number of magic items to which I can attune.