The Rechargeable BTE Digital Hearing Aid China has Latest technology with amplifying sound function, which can be used for hearing impairment people. The Fancy Rechargeable BTE Digital Hearing Aid helps people with mild to severe hearing loss regain their hearing and listen with confidence. High-frequency reconstruction technology allows hearing impaired people to hear high-frequency sounds such as children's laughter, door bells or bird calls, and can also help wearers improve speech comprehension in noisy environments, making listening easier.