Media Tech boom box MT3145 speaker protection

In my opinion one of most disadvantages of MT3145 speaker is risk of damage speaker, because it has no protection. I always afraid of this during trips.

So I create "protector". Just print it and glue it inside speaker hole. Small triangles can be pressed into holes or glued.

Also volume regulation knob can be created. It need one more "triangle".
After print supports on down part of knob must be removed