This APP needs to be used with professional equipment HA-818; it tests the user's hearing level and performs hearing compensation for the left and right ears respectively. The APP fitting data can be exported to the earphone with one click, and the earphone will automatically generate a customized hearing loss compensation scheme according to the exported hearing threshold data, eliminating the tedious fitting process and reaching the same level as professional hearing aid products. It is the preferred hearing aid for the hearing impaired. Program.
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