FEATURES

Amplifies incoming voices up to 175 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)