The Clarity HA-40 Portable Telephone Handset Amplifier featuring Clarity Power technology makes telephone conversations not only LOUDER, but also CLEARER and EASIER to understand.

Features

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

Product Literature (PDF)