That comes with MaxxAudio installed … https://www.google.com/search?q=“Dell+Inspiron+15”+MaxxAudio .
MaxxAudio can look like this or this.
Windows Audio enhancements & MaxxAudio can both be on by default.
[ Also Windows updates can re-enable audio enhancements which have been disabled].
The pop-shield has to be at least a hand’s-width (4") away from the microphone to be effective.