What was considered only a complement, today assumes a strategic and expanded role in the development of several devices. Sound is fundamental in building emotional and functional connections of brands and has proven to transform their experience with their audiences. A good sound design, whether in the digital or physical environment, must take into account not only aesthetics, but also the intention we want to provoke, human behavior, its routine. For this reason, our projects are guided by user-centered design, always taking sound comfort into account. This not only allows for the development of better applications, but also reduces costs and increases production efficiency.