This Clarity brand in-line telephone amplifier provides up to 40 decibels of amplification for telephone users with hearing loss. The HA40 telephone amplifier has a special boost button to maximize amplification while blocking out feedback and background noise. The HA40 is compatible with most corded home and office telephones.
Please note: In-line amplifiers will not work with Trimline telephones or telephones with a dial pad in the handset.

One year limited warranty

Features:
- Clarity® Power™ technology
- Tone control
- Boost button maximizes amplification while reducing background noise
- Compatible with most corded home and office phones
- Will not work with Trimline telephones or phones with a dial pad in the handset
- Uses 9V battery (included)

Product Code: AMER-HA40