This article explains how to use AirDrop on your iPhone, including how to turn it on, send a file, and accept or decline a file sent to you via AirDrop on iPhones running iOS 14 through iOS 11. An alternate method is available for older iPhones running at least iOS 7.
How to use AirDrop on your iPhone or iPad | Apple Support
You can start the AirDrop feature in two ways: in the Settings app or in Control Center. The service works via Bluetooth, so senders and receivers need to be close to each other: within 30 feet and preferably closer.
On your iPhone, open the Control Center by swiping down from the top-right corner of the screen.
Press and hold the section with the Airplane mode, wireless, cellular, and Bluetooth icons to expand the section.
