The noise from my riding mower is extremely evident even when the ambient noise knob is turn down. Negates music I listen to. What am I doing wrong?

Here are steps you can take: Confirm Electronics are Functioning Properly: 1. Under normal conditions, adjust that the volume knob and ambient output knob to confirm both functions are operating correctly. If there is no change to volume or ambient noise output, please reach out to www.KleinTools.com/warranty Ensure the earmuff has a proper seal for optimal noise protection: 1. Place earmuffs on the head positioning the earcups over each ear. The inner headband is labeled (R or L) for convenience. 2. When placing the earcups over the ears be sure to: a. Completely cover the ear, the ears should never be exposed. b. Avoid obstructions (such as hair) that would prevent a firm seal. 3. Adjust the slider arms up or down to tighten or loosen the headband until a hugging seal and comfortable fit is achieved. Use additional Protection: 1. Under high decibel conditions, passive earplugs can be used in addition to earmuffs to mitigate noise