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Designed
for people with moderate to profound hearing loss
The world's
loudest telephone amplifier, the HA-40 gives you volume
control up to 100 times standard sound level
BOOST
button maximizes amplification while blocking out feedback
and background noise
Tone
Selector amplifies specific frequency range for sound clarity
and distinction between similar sounding words like "chair"
and "share"
Compatible
with most home and office telephones
Connects
easily between handset and phone base, no wiring involved
Compact
and portable, take it with you everywhere
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