It might help if you could reveal the brand & model number of the headphones.

What happens if you detach the microphone?

The V15 port is NOT a headphone port. It is a combination headset port that includes the mic. It is compatible with a 4-element TRRS headset plug. Any noise cancelling feature would be built into the headset mic if it actually has this feature. There usually is a small button with an LED inside the ear cup to enable and disable noise cancelling. This is why I asked to disconnect the mic.

However, the V15 headset port impedance specification is ~50 ohms or less. This is typical for a laptop . The headset you have is listed with an impedance of 1300 ohms. If true, this would be far too high and would yield only weak sounds from your laptop under any circumstances. It might be OK for some desktops or game consoles which could have higher impedance capabilities. What other devices did you test your headset on?

> V15 has a single port> >

Yes BUT as mentioned earlier, it is a HEADSET port, not an old-style HEADPHONE only style port. A headset port includes the mic all in a single port.

It's still hard for me to believe that it worked very loud before on the V15 with a 1300 ohm impedance. But if it did then make sure the plug is fully inserted that its microphone tip, 2 speaker ring segments and ground sleeve are well aligned with the jack's slider contacts. You may have to push down or pull up on the plug to make sure its sleeve is in good contact with the exterior metal part of the jack. Sometimes the ground connection is poor because the sleeve barrel diameter is slightly smaller than 3.5mm.

>I didn't plug off the mic port because there's no place for it in the laptop so, it's just dangling around but the recording reveals two pops. Just adding as much info as I can> >

Sorry. Videos don't help. But we still seem to have some misunderstanding on the laptop's microphone jack. Perhaps this image of the 4-element TipRingRingSleeve headset plugs will help show how your laptop's single combined mic+headphone jack functions.

Your laptop likely uses the configuration on the right. Many cellphones and older PCs use the configuration on the left. Thus your laptop requires a good ground sleeve connection for the headset speakers & microphone to work properly. AND the headset speakers should have an impedance less than about 50 ohms.

If the Monster headset speakers actually have an impedance of 1300 ohms as advertised on Amazon.eg, then they will sound weak. And if it's configured like the plug on the left with the ground on the second ring instead of the sleeve, it will also sound weak.

> > my headsets have separate cables for mic and audio> >

OK. This explains the problem. You have a much older 3-element TRS plug for the speakers in the headset, The TRS plug is often shorter than a TRRS plug. I'll guess that the tip of the TRS plug is not reaching or connecting very well with the slider contact for the tip inside the laptop jack

Accordingly, I suggest that you purchase an inexpensive 3.5mm headphone mic splitter that will give you the proper 4-element TRRS plug that is compatible with your laptop and properly connects the 3-element TRS mic and headphone plugs from your headset. The splitter essentially converts your single mic+headphone jack into two separate jacks for the mic and the headphone plugs like in older laptops.