Research and technological development, allows us to have small, ergonomic earphones, cutting-edge styles and great aesthetic beauty, with elements of amplification and adaptive features that make signals with a natural sound quality and voice inputs exalted, designed to respond the biggest complaint from users: discrimination and achieving speech intelligibility in noisy environments and group discussions. The incorporation of wireless technology equipment hearing aids, enables the processing and analysis of the sound signal operate combined in the two hearing aids improving the perception of directionality, noise reduction and spatial location of sound sources. Search auditory perception deliver a close to normal, finally seeks to insert and participatory integrate hard of hearing people.