Corded large-button telephone with 6 photo memory slots, audio boost, and extra loud ringtones with a large ringtone display. Compatible with hearing aids. One-touch audio boost for +40 dB extra loud volume in the earpiece for effortless conversations, adjustable ringtone volume up to 90 dB, and a large visual ringtone display so you never miss a call. Six very practical photo memory slots allow you to program the phone numbers of your closest family members, friends, or your doctor and call them at the touch of a button. It's so nice to identify the person you want to call by their photo. The large keypad with big buttons makes dialing easier for clumsy hands, and ten speed dial numbers allow you to store phone numbers of relatives. You can adjust the ringtone volume in three levels: low, loud, and off, as well as the earpiece volume when you need to increase or decrease the sound, and even the microphone volume to adjust the transmitted volume. Works without batteries or power supply. Can be connected directly to the box, digital router, hub, or telephone line.