Features:
• Amplifies incoming voices up to 175 times (45+dB), so you hear every word with unmatched clarity
• Selectable DigitalTone Enhancement allows you to boost and enrich the speech frequencies you can’t hear well, making difficult to hear words intelligible again.
• Automatic Gain Control optimizes sound level for superior listening comfort.
• Latest Digital Sound Processing technology eliminates virtually all distortion, echo effects and unwanted static commonly found in other ordinary amplifiers
• Works with virtually all corded home or business telephones; it connects between phone’s handset and base
• Compact and portable
• Battery (9V) not included, AC adapter optional and sold separately