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HA40 In-Line Telephone Amplifier by Clarity - HA40 In-Line Telephone Amplifier by Clarity

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Ships from warehouse. Est. Ship Date May. 29, 2024
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HA40 In-Line Telephone Amplifier by Clarity presents The HA40 In-Line Telephone Amplifier by Clarity. This in-line telephone amplifier is battery-powered with slide controls for both volume and tone. The tone selector amplifies specific frequencies for optimum speech clarity and distinction between similar sounding words, allowing users with a hearing loss to customize the assistive listening device.

The telephone amplifier has a special boost button to maximize amplification while blocking out feedback and background noise. The unit is compatible with most home and office telephones and is easily connected between handset and phone base. The HA40 uses a 9V battery (included), and is a great secondary or backup amplifier for amplifying a telephone at home, work or travel.


  • Clarity Power technology
  • Tone control
  • Boost button maximizes amplification while reducing background noise
  • Compatible with most corded home and office phones
  • Will not work with Trimline telephones or phones with a dial pad in the handset
  • Uses 9V battery (included)Please note: In-line amplifiers will not work with Trimline telephones or telephones with a dial pad in the handset.
  • One year limited warranty
More Information
Brand Name Plantronics, Inc.
Manufacturer Number AMER-HA40
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