MacBook Pro 2018 13-inch TouchBar - Loose screw type sound near headphone jack when shaken up and down

I have a custom i7 13-inch MacBook Pro, 2018 model. It's about a 1.5 weeks old.

I noticed that when I give it a little shake up and down, there is a sound which is something like a loose screw or some small loose metallic object making a clinking/rattling noise which is fairly audible. It only occurs on the right side around where the headphone jack is towards the back, no sound on the left. It occurs with lid closed and open.

Is this a common issue that any others who have a 13-inch Touch Bar model have experienced? I am inclined to leave it be, as the machine works fine, but having spent a lot of money on what is a new unit, I wonder if I should look further into the matter. It will likely bother me if I find it's not a common issue. I'd like to know if anyone has found the same with their unit, and what should I do in this case?

Cheers!