Clarity HA40 HA40 Portable Telephone Handset In-Line Amp Universal 2-Way LCD Security & Keyless Entry System mounting hardware & manual

Clarity HA40 HA40 Portable Telephone Handset In-Line Amp Universal 2-Way LCD Security & Keyless Entry System mounting hardware & manualDesigned for people with mild to severe hearing loss; Uses ClarityPower(TM) technology; Increases incoming sounds by up to 40dB; Adjustable tone control (600Hz 2. 4kHz) amplifies specific frequency range for sound clarity & distinction between similar sounding words like "chair" & "share"; Boost button allows for even more amplification & eliminates background noise & feedback by muting microphone in handset; Compatible with most home & office

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