This universal telephone amplifier converts virtually any corded home or business phone into an amplified telephone. One year warranty.
- Amplifies incoming voices up to 45dB LED indicators for on/off headset and headset mode
- Two-way converse while in Boost mode
- Digital Sound Processing technology eliminates virtually all distortion, echo effects and unwanted static
- Digital Tone Enhancement allows you to boost and enrich the speech frequencies you can't hear well
- Automatic Gain Control optimizes the sound level for superior listening comfort
- Automatic Volume Control Auto shutoff AC adapter jack (not included) 9V battery (not included)