The ameriphone lvd large visual display is designed for persons with low vision or for long-distance viewing. The lvd is compatible with the q90d tty, the dialogue iii-p tty and the vco amplified telephone. Large super bright display with 20 x 1 inch tall characters. Adjustable brightness to suit your needs. Adjustable display speed and direction for ease of use. Optional color lens. Large memory buffer (32k). Can be placed over tty or mounted on wall. Connecting cable included. Available in green, red or yellow display.