Helem bluetooth device - MAT Helem bluetooth device - MAT from Miguel Belascuain Helem bluetooth device - MAT Concept research for a helmet bluetooth device. Client: MAT Group - Barcelona gLike Helem bluetooth device - MAT Concept research for a helmet bluetooth device. Client: MAT Group - Barcelona Industrial Design Illustrator Product Design Illustration Share R 7 n Miguel Belascuain Master in Automotive Design. Córdoba, Argentina Follow Contact