Large key telephone with illuminated display: Gigaset DL580 Features: Amplifier button for "extra loud" listening Flexible volume settings Excellent audio quality Hearing aid compatible Phone book for up to 99 entries Display with extra large font size Extra large keys Optical call signalling: Illuminated display, LED flashing light hands-free function 10 different ringtones Display size: (H x W mm) 46 x 78 Jumbo digits: Yes