Providing by lease or rental electromechanical acoustic equipment and systems for the following events presentations in museums, conventions, conferences, seminars, and symposia for educational, cultural, or entertainment purposes, musical, dramatic, comedic, and dance performances, athletic events

Electromechanical acoustic apparatus and systems comprised of electromechanical acoustic transducers and drivers for projecting sonic energy in a controlled, directed pattern; audio equipment, namely, speakers, amplifiers and loud speakers

Scientific evaluation and testing of the products of others, namely, of acoustical apparatus, design and testing the products of others, namely, acoustical equipment; design for others in the field of acoustical and sound fields

ACOUSTICAL HOLOGRAPHIC IMAGING MACHINES FOR NON-DESTRUCTIVE TESTING, MEASURING AND MONITORING EQUIPMENT FOR MEDICAL, SCIENTIFIC AND INDUSTRIAL APPLICATION