JH-D19 Waterproof Hearing Aid

https://www.jhhearingaids.com/jh-d19-waterproof-hearing-aid/ Specification Type: Waterproof Digital Hearing Aids Frequency Range: 200-4200Hz Waterproof Test: IPX8 Special Function: WDRC and AFC Environment Modes: 4 Modes: Meeting, Normal, Outdoor,...