Measures 9 by 1 by 7.2 inches; requires 2 AA batteries (not included). Displays time, date, day, temp on one screen; wall hanging or free standing;. Clock with alarm and snooze; time with seconds. Automatically updates for seasonal time changes where applicable. Atomic all clock with self-setting time and date, indoor temp, alarm. Recommended batteries (Brand Name, standard alkaline, at least 6yr expiration date from current year, or 1.48v). Clock measures 8.95"L x 1.05"W x 7"H; battery operated (requires 2 AA alkaline batteries -not included). Complete time, date, with indoor temp; Clock is freestanding or wall mountable. Indoor temperature only (no outdoor) reads in Fahrenheit or Celsius. Atomic self-set time with automatic DST updates (on/off option).