In-line Telephone Amplifier
- Patented Clarity® Power™ technology
- Amplifies incoming sounds up to 40 decibels
- Adjustable incoming volume control
- BOOST button eliminates background noise and feedback for extra loud and clear conversations
- Tone selector for maximum speech clarity
- Connects easily between handset and phone base
- Works with digital and analog phones
- Compact and portable so you can take it anywhere
- Requires one (1) 9-volt battery (included)
- Hearing aid compatible
- One (1) year limited warranty
Note: The HA-40 CANNOT be used with "TrimLine" (keypad in the handset) type telephones.
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