The UltrAtomic wall clock features the most accurate atomic movement on the market. Similar to the traditional atomic clocks, this clock automatically adjusts to the current time and updates automatically for daylight saving time twice a year. However, this particular clock is equipped with two antennas, enhancing the reception allowing it to synchronize in the nosiest and hostile electronic environments such as busy office buildings, hospitals, or other institutions. The extra antenna increases signal reliability and penetration. The movement features 2 additional battery compartments (optional use) that allows the clock to run longer & extending battery life. It also features a battery saving option, pausing the secondhand over night time hours and keep it running years longer before you need to replace the batteries.