procedure are described in the American National Standards
Institute (ANSI) C63.19 standard. For
information about hearing aids and digital wireless phones
FCC Hearing Aid Compatibility and
Volume Control:
http://www.fcc.gov/cgb/dro/hearing.html
Gallaudet University, RERC:
https://fjallfoss.fcc.gov/oetcf/eas/reports/GenericSearch.cfm
Your device meets the M4/T4level rating.
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