The Ameriphone HA40 Portable Telephone Handset Amplifier featuring Clarity® Power™ technology makes telephone conversations not only louder, but also clearer and easier to understand.
Clarity® Power™ technology
Increases incoming sounds up to 40 decibels
Adjustable incoming volume control
Adjustable tone control (600-2400Hz)
Boost button allows for even more amplification and eliminates background noise and feedback by muting the microphone in the handset
Connects easily between handset and telephone base