Serene Innovations HD Amplified Photo Speaker Phone Model HD-40PThe HD 40P provides you with over 40dB amplification; increasing sound 20 times louder. Featuring an amplified speakerphone, this phone is designed for those with moderate to severe hearing loss, low vision, and who can benefit from the ease of photo memory dial buttons. Product Features: High Definition Sound Technology for unmatched clarity, a new standard in amplified telephone technology Amplifies incoming sound up to 20 times (over 40+dB), the