The BigTel 40 plus is an easy to use, highly amplified Big Button Desk telephone.It works through using the telephone line power meaning there is no need for a separate power supply.There are six programmable and fully customised photo memory buttons for easy access to your most popular contacts, making it ideal for users with dementia or other cognitive conditions. There are 10 speed-dial numbers, volume control for the earpiece and the ringer, as well as tone control to improve sound clarity.This phone has been designed with high contrast, XL easy to press buttons, ideal for anyone living with dexterity issues, and boasts an adjustable receiver volume up to 40dB and adjustable ringer up to 90dB.Size: 175 x 205 x 80mm (6¾ x 8 x 3\')6 programmable direct-dial photo buttons - ideal for those with dementia or cognative impairment