Amplifies incoming voice calls up to 40 dB

Slow Talk Mode for Better Understanding
Convenience features: Speakerphone, intercom, DECT 6.0 Plus for optimum signal range, talking digit keypad, 100-number phonebook, 9 speed dial numbers, up to 15 minutes of voice messaging and it is expandable to 6 handsets.
Easy to See, Easy to Use: Ringer ID, enlarged memory dial buttons, backlit slow talk button, backlit volume booster button
Audible / visual call alerts
Built in backup battery
Call block
Talk time: Up to 13 hours
Standby time: up to 9 days
Headset jack (2.5 mm)
Additional handsets (sold separately): KX-TGMA44W (40 dB)