The Xtra 2155 Wireless Phone features four memory buttons to call pre-saved numbers, to which you can attach photos of the contact. Large keypad buttons with talking digits ensure that you are dialling the correct number with ease. Ringtones can be set up to 90dB so you can always hear your calls, and the phone also features a large, backlit indicator to display who is calling.This Wireless Phone is hearing aid compatible and has a high-quality handsfree function with adjustable handset and base volume, as well as an audio-boost for an extra 30dB earpiece volume. The answer machine has 30 minutes recording time as well as a function allowing messages to be played more slowly, ensuring you never miss a message.