Different sound when you scan an invalid item/barcode

Abbott is using the ScanEach functionality due to the fact they are validating the lot. It's small items so they take 5 at once and scan them one after the other. They obviously look at the screen, but also would like to trust on the sound. Right now it doesn't matter what you scan, the sound of scanning is exactly the same

If they would scan an invalid item/barcode, they would like to the iPad to make a different sound. That would be an extra check for them to understand if the item was scanned successfully or whether they need to scan the each again

They have to use the scaneach functionality because of the validations they do. We need to validate the item and lot and sometimes need multiple scans for that. To hear if the scan was succesfull definitely adds to the speed of the picking process