2024 Best Digital Hearing Aid BTE Adjustable Tone Sound Amplifier Portable Deaf
B30 UP for severe profound loss less than≤110db. B30 P for Moderate to Severe Hearing Loss Less than≤100db. B30-R for Moderate to Severe Hearing Loss Less than≤100db. B50-R P for Moderate to Severe Hearing Loss Less than≤100db.