From the Manufacturer: Big Buttons with Large Characters The big illuminated keypad with large characters is easy-to-see & easy-to-push. It also has a simple & user-friendly key layout that even the elderly will find comfortable to use. Enhanced Volume with Side Volume Keys You can use the dedicated volume key to adjust the receiver volume, which is about 70% louder than standard Panasonic DECT telephones.HAC (Hearing Aid Compatibility) Support Enjoy clear conversations, wearing a hearing aid. This handset is designed to work well with a hearing aid. Wide Ringer Indicator The wide indicator helps you visually check incoming calls with ease. This is a convenient feature for those who work in noisy situations or are hard of hearing. Nuisance Call Block You can block any specified number, as well as any head string of 2 to 8 digits matching your specified numbers. The feature helps to reduce unwanted calls, such as telemarketers & free phone number prefixes. In addition, you can also block numberless calls. The KX-TGE72 series supports as many as 250 registrations to block numbers. This feature helps to keep your personal time from being interrupted. Do Not Disturb Mode The handset can be programmed to prevent ringing during specific periods, so the phone won't ring while you're sleeping. However, the ringer can be turned on for specific callers by placing them in a special contacts group. Advanced Answering System Catch answering machine calls whether you are at home or away. When a new message is recorded on the answering machine, the base unit can alert you with a sound. In addition, individual messages can be fast-forwarded or rewound. When you are away, the phone can call a pre-registered mobile phone or office phone to alert you. You can answer the call to hear your new message. Noise Reduction When the area around the other party is noisy & it is difficult to hear, you can reduce the surrounding noise to make the speaker's voice easier to hear just by pressing the dedicated button. Talking Caller IDThe base unit & handset notify you of caller information with a voice, so that you know who is calling without having to go to the phone to view the display. This is convenient because you can predict who should answer the phone. Radiation Free (Eco Mode Plus) Completely eliminate radiation while the phone is in standby mode. Eco Mode Plus cuts transmitting power to zero. The base unit stays off until a call comes in or a handset is activated.