Which feature allows users to retrieve lost or stolen Apple devices?

The feature that allows users to retrieve lost or stolen Apple devices is Find My. This tool is integrated into Apple devices and provides a way for users to locate their devices using GPS and internet connectivity. When a device is marked as lost, Find My enables location tracking, sends notifications if the device is found, and can also lock the device or display a message on the screen to help someone return it. Additionally, it allows users to play a sound to help locate the device if it is nearby.

Other features listed do not serve this specific purpose. AirPlay is designed for streaming audio and video content to compatible devices. Remote Desktop facilitates remote access to another computer but does not assist in tracking devices. iCloud Drive is a cloud storage service that allows users to store and share files, but it does not have capabilities to locate lost or stolen devices.