It converts virtually any phone into an amplified telephone!

FEATURES

Used with any HEADSET with a RJ9 plug (same as telephone handset-cord connector)

Amplifies incoming voices up to 170 times (45+dB)

Patented technology enables it to work with virtually all corded home or business telephones

High Definition Sound (HDS) Technology eliminates virtually all distortion, echo effects and unwanted static

Digital Tone Enhancement boosts and enriches the speech frequencies that you can't hear well, making difficult to hear words intelligible again

Automatic Volume Control optimizes sound level for superior listening comfort

Battery (9V) not included. Optional AC adapter (sold separately) available

One year warranty                    More Specifications (PDF)