# Add Scan Feedback

Trigger a beep sound or vibration when a barcode is scanned successfully.

<div class="sample-code-prefix"></div>
>- Objective-C
>- Swift
>
>1. 
```objc
[DSFeedback beep];
[DSFeedback vibrate];
```
2. 
```swift
Feedback.beep()
Feedback.vibrate()
```

**Related API**

- [`Feedback`](/camera-enhancer/docs/mobile/programming/ios/auxiliary-api/dcefeedback.html)