Audeo M Hearing Aids in Nungambakkam Audeo M from Phonak comes in 4 different models namely M30, M50, M70 and M90. Audeo M30 is the basic model in this category with 8 channels with bluetooth connectivity. Audeo M50 comes with 12 channels and few automatic programs. Audeo M70 is a 16 channel Hearing Aid with additional automatic programs like comfort in noise and speech in echo. Audeo M90 is a 20 channel Hearing Aid with high end features which makes listening very easy with all automatic programs. All the above Hearing Aids are bluetooth connected with binaural streaming.