For your consideration, here is a Vintage Realistic Radio Pillow Speaker, no. 33-206A, made in Taiwan.  It has a little wear on it and a couple of light spots on the back of it.  I tested it.  It works and is the best quality sound for what it is.  It has a diameter of 2 1/2 inches.  It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (351.267k-.5hc)