The KX-TGM450S amplified landline telephone has features that are tailor-made for individuals who are hearing impaired. The volume of calls can be boosted up to 50 dB, and the ringer volume can be boosted up to 112 dB, so that voice calls will always be clear and you will always hear the phone when it rings. In addition, noise reduction suppresses background noise to ensure that voices can be heard clearly. Use the Slow Talk button to slow down the speed of speech so you can clearly understand what is being said, both in real time and in voice messages.
A large, bright display screen of 1.8" ( 4.4 cm) displays caller information, with large backit buttons to make dialing easy, even with low vision or in the dark. Bright The red LED Visual Ringer on the base unit and handset illuminates when the phone rings, ensuring you will never miss a call. With Speakerphone, Talking Caller ID, Talking Keypad and Phonebook, and Intercom. Nine speed dials and 250-number call block. Expandable to 6 handsets. Headset compatible.