HA-40 Hard of Hearing Amplifier

The HA-40 Hard of Hearing Amplifier allows you to control the volume on all mechanical and electronic sets.

  • Amplifies volume more than 100 times the normal level
  • Boost button provides extra amplification while blocking out feedback and background noise
  • Tone selector amplifies selective speech clarity and distinction between similar words like "share" and "chair"
  • Turns on automatically when the handset is lifted
  • 9 volt battery included
  • Low battery indicator
  • Attaches to telephone without modifying case – attaches by a modular cord plugged into the handset of the telephone
  • Compatible with multiline or singleline telephones