The Kinsa QuickCare's beep can be a bit quiet, so if you're hard of hearing it may be difficult to detect. Unfortunately, the volume of the beep cannot be increased, but don’t worry! There are also visual cues to indicate when a reading is complete.
During a reading, the display on the thermometer will fade in and out, but will return to full brightness when the reading is complete.
Additionally, you can also open your Kinsa app to see a progress bar during the temperature reading, and the temperature measurement itself when the reading is complete. And as a bonus, you'll get to meet Ellie the Elephant in the Kinsa app too!