An echo free Anechoic Chamber is a structure that is well-insulated both external noise and internal reverberations shockroom or a space zone designed to eliminate sound waves reflection and the direct sound strike dealt in qualities of acoustics - anechoic, literally can be translated as ‘no echoes’ in this space the sound behaves in exactly the same way it would if it were in a space without any obstruction. Each face, that is to say the walls, ceiling, and the floor are covered in wedges of sound absorbent foam. The heavy insulation measures of these chambers ensure a transparent acoustic cavity, which is necessary for testing delicate equipment, products, or experiments.