Hear clearly with DCP digital amplification up to 50 decibels and three 3 tone settingsAmplifies outgoing speech up to 15 decibels for others to hear you betterLoud and clear speakerphone for hands-free conversationsTalking Caller ID announces the phone number and/or name of the incoming callerIlluminated talking dial pad with large buttons that speak the number that is pushedExtra loud, flashing ringer with adjustable tones and voicemail indicatorHearing aid compatible and TIA-1083 compliantDirect connection to assistive listening devices or headset 2.5mm or 3.5mmDual Power Battery Backup lets you make calls when the power is out included