The Kelvin Talking Thermostat is a low vision thermostat designed for use by individuals who are blind or have low vision, mobility disabilities, or severe physical disabilities. This programmable thermostat controls heat, fan, and air conditioner functions. It can be operated by pushing its large tactile buttons, all of which talk, or through voice commands. To initiate voice commands, the user presses a button, claps hands, knocks on a table or desk, or whistles. When a button is pressed, a clear voice states what that button signifies. The thermostat can also announce the time, room temperature, and temperature setting. Programming buttons include "Set Day," "Set Time," and "Raise" or "Lower" temperature. The thermostat can be programmed to lower the temperature daily at specific times of day, such as evening, and to raise the temperature the following morning. It can also be programmed for weekends or vacations, when the residence is unoccupied, and to adjust automatically for periods when the house is occupied again. Other features include a microphone, Fahrenheit or Celsius settings, and an LCD display. POWER: Uses four double-A batteries. The unit is equipped with a low battery warning. DIMENSIONS (HxLxW): 5 x 1 3/8 x 5 inches. COLOR: Light gray. WARRANTY: One year limited warranty.