ChatBox 40 is a direct selection and scanning communicator designed for use by individuals with communication or speech disabilities. This voice output device speaks pre-recorded messages when the user presses buttons on the adjustable keyboard display. The unit also supports switch scanning options for individuals who are unable to press buttons. The keyboard display supports 10 large keys or 40 standard-sized keys, with ten levels of messages. Single-switch, dual-switch, and joystick scanning are available in row/column, linear, directional, latched, direct, and step scanning modes. All scanning modes are visually supported with lights on the keys. The scanning time is variable from 0.1 to 10 seconds. The text of recorded messages and menu-driven setup utilities can be displayed on a two-line LCD display. The device has volume control and an on/Off switch with automatic power-down, and comes with a carrying case. POWER: Uses rechargeable lithium-ion battery with alternating current (AC) adapter. DIMENSIONS (LxW): 8.3 x 12 inches. Keys measure .9 x .9 inches each on a 40-key display or 1.9 x 1.9 inches each on a 10-key display. WEIGHT: 2.25 pounds. WARRANTY: 12 months.