My laptop has a USB port on both sides and on the left side there is also a headphone jack. When I plug in my wireless mouse's receiver to the port on the left side, I hear a slight static noise coming from my headphones (earbuds, in-ear). When I put my hand on the laptop, between the keyboard and the headphone jack, the noise seems to be abating.
I must add that I always hear a static white noise coming from my headphones unless I set volume to 0% whether something is playing or not. Though, this noise is different as it resembles a continuous clicking. I don't hear the clicking when I plug the mouse's receiver into the USB port on the right.
What do you think is the problem? How would I go about fixing it?