Vivatone - Prelude
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Sounds So Natural. Feels So ComfortablePrelude is the ultimate performance in an entry level hearing instrument. Both Prelude 50 and 25 use Vivatone's High Fidelity Receiver Unit. Advanced processor provides wide fitting range for the Prelude 50 and 25 (from 40dB to 55dB between 250Hz and 1000 Hz and from 70dB to 80dB between 1500 Hz and 4000 Hz).
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