Big Button, Loud Volume 50+ dB, Talking CID Cordless Phone and T

Clarity Cordless Phones for Hearing Impaired - 50+dB amplification cordless phones with High-Definition Sound and Digital Tone Control. Every conversation can now be clear and easily understood with Large LCD display. Display in English, French, or Spanish. and talking features in English and French. Hearing-aid compatible with accessory jack for neck loop or headset. One-touch speed dials and emergency Help button.

Source:- https://www.sereneinnovations.com/high-definition-talking-cid-cordless.html