Digital Programmable Hearing Aid SERENA-9 for Sound Amplification

A hearing aid electronic digital channel-free programmable air sound conduction behind-the-ear type "SERENA-9" is designed for sound amplification by air sound conduction for mild, moderate and severe hearing loss. It is intended for individual use by children from 3 years and older and adults without age limitation. It is used for hearing aids for sensorineural, mixed and conductive hearing loss.