High-Definition Amplified 26+dB Speakerphone with Photo Memory

Amplified Telephone For users with mild to moderate hearing loss

Boosts amplification up to 26+dB for crystal-clear conversations. High-Definition Sound and Digital Sound Processing technology. Use with state-of-the-art speakerphone or hearing aid compatible handset. Nine convenient photo memory buttons for quick, one-touch dialing. Super-loud ringer and dual flashers for incoming call notification. Powered by the telephone line, no AC adapter required.

Source: https://www.sereneinnovations.com/high-definition-amplified-speakerphone-with-photo-memory.html