The iPhone 13 case itself doesn't have a screen recording function. To record a screen on an iPhone 13, you can use the built-in screen recording feature. Here are the steps to record a screen on an Apple 13:
1. Open the Control Center: Swipe up from the bottom of the screen, or swipe down from the top right corner (depending on your device) to open the Control Center.
2. Find the Record button: In the upper area of the control center, you should be able to see a circular button with an internal circle on it.
3. Start screen recording: Click the screen recording button, and select whether to enable microphone recording in the pop-up prompt. You can also access more Settings by long pressing the record button.
4. Start recording: Click the \"Start Recording\" button on the screen, and a red recording indicator will appear at the top of the screen.
5. End recording: To end recording, click the recording indicator on the screen and select \"Stop Recording\". You can also stop recording by clicking the Record button in the Control Center.
Once you've finished recording, you can find the recorded video in your album and edit, export, or share it. Note that recording screens can consume your device's battery and storage space, so make sure your device is adequately charged and has enough space available.