# QR Scanning

### Benefits of QR Scanning:

* **Use Cases**: QR scanning is common in retail scenarios or multi-device interactions. It is perfect for physical interaction, Point-of-sale terminals, or when users interact across devices (desktop to mobile).
* **Multi-Device Scenarios**: In cases like desktop to mobile, users can scan the QR code on the desktop screen with their mobile device. Typically, there's no need for a return URL as the desktop browser can pick up the results.
* **How It Works**: Generate a QR code for the payload using Xumm. Users scan this QR code with the Xumm app to access and interact with the payload.

### User Perspective:

For end users, QR scanning is intuitive and engaging. They scan the QR code with their mobile device and are immediately taken to the payload in the Xumm app. This method is particularly effective in retail environments or when users operate across multiple devices.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.xaman.dev/concepts/payloads-sign-requests/delivery/qr-scan.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.