Hubbard Scientific Sight and Sound Lab was listed on Amazon for $99.95, selling for $99.95 USD brand new. Manufactured by American Educational Products. There are 1 units left brand new.Specially designed equipment helps students investigate the structure and function of two important senses: sight and sound. They learn how a lens affects vision; measure field of vision, reading field, and peripheral vision; and capture sound waves. Includes teacher s guide.