Hear clearly with DCP? digital amplification up to 50 decibels and four (4) tone settingsAmplifies outgoing speech up to 15 decibels for others to hear you betterLoud and clear speakerphone for hands-free conversationsHigh contrast Caller ID screen with large font in either English Spanish or French languagesTalking Caller ID in either English or FrenchIlluminated talking dial pad with large buttons that speak the number that is pushed in either English or FrenchExtra 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 3.5mm)Dual Power Battery Backup lets you make calls when the power is out (included)Includes 3 extra handset (XLC3.6+HS?)Wall mount and belt clip available by contacting Clarity at 800-426-3738