Starkey Axio 6 BTE hearing aid has 6 channel capacity, 6 band sound processing system, ISO compression, feedback cancellation system, noise control, automatic telephone response, environmental adaption, automatic directionality, programmable rocker switch, surface nano shield, battery door lock, hydra shield protection, programmable telecoil, voice indicators, up to 4 programmable memories, rocker switch, BTE 20-120 dB / CIC 00-110 dB fitting range, BTE 13 / CIC 10 battery size, country of origin Mexico, manufactured by the USA, 2 years warranty.