Ameriphone In-Line Phone Amplifier

Turns most standard home and office telephones into an amplified telephone with up to 40 db of amplification. Unit also maximizes amplification while blocking out feedback and background noise. Tone selector amplifies specific frequencies for optimum speech clarity and distinction between similar sounding words. Unit connects easily between the handset and phone base, with no additional wiring required. One year warranty.

Note: Only works with corded handset phones

Requires 1 “9 volt” battery (included)