Noise earplug falls

The utility model provides a noise earplug falls. Including head body, middle part body and afterbody body be provided with the pit on the rear end face of afterbody body. Compared with the prior art, have following advantage: the one of which, owing to include head body, middle part body and afterbody body be provided with the pit on the rear end face of afterbody body, object vibrations produce the concave -convex structure of sound wave through propagate the afterbody body that reachs noise earplug falls in the air, and through reflection, stack each other, collision, acoustic wave energy changes heat energy into on the concave -convex structure face, and sound wave intensity weakens, and the noise reduction can not use more comfortablely because of the noise earplug falls vibrations cause the duct uncomfortable many times, next, because the pit is back little round platform form before big, coniform, terrace with edge form or pyramid form, and it is more convenient to process, and the noise reduction effe