Turn on Bluetooth
On an iPhone with Face ID: Swipe down from the top-right edge to open Control Centre, then tap to turn on Bluetooth.
On an iPhone with Touch ID: Swipe up from the bottom to open Control Centre, then tap to turn on Bluetooth.
On an iPad: Swipe down from the top-right edge to open Control Centre, then tap to turn on Bluetooth.
On a Mac: Click in the menu bar, then click to turn on Bluetooth.