Use tweezers or your fingers to lift and remove the speaker from the center of the midframe.

During reassembly:

Check that your new speaker has a piece of foam on the back. If it doesn't, transfer the foam from the old speaker to the new one.

Install the speaker so the raised portion of the contact springs are to the right. If you are unsure of the correct orientation, check the motherboard and make sure the springs make contact with the posts on the motherboard.