The mobile audio industry has undergone significant transformations over the years, driven by advances in technology and changing user needs. In studio settings, mobile audio equipment has become increasingly popular due to its flexibility, convenience, and cost-effectiveness. This paper reviews the evolution of mobile audio technology in studio settings, with a focus on older versions and fixed solutions. We examine the key developments, challenges, and limitations of early mobile audio systems and discuss how they have influenced the design of modern, fixed solutions.