The Gigaset A735 is a user-friendly phone for senior citizens. You can use this device with a hearing aid without any problems. You won't hear any white noise when you use a hearing aid. As a result, you can always hear the person on the other end of the phone clearly. You'll always choose the right number thanks to the extra large buttons. Thanks to the backlit buttons, you can also see which number you're pressing in the dark. You can save up to 100 contacts in the contacts list. You can keep your hands free when you're on the phone thanks to the hands-free function. This phone doesn't have an answering machine, so it doesn't record messages for you to listen to later.