Sangean Rcr22 Am/Fm Atomic Clock Radio With Lcd Display Radio-controlled clock with LCD display; Atomic clock with PLL-synthesized tuner & 14 station presets & detachable triangle atomic clock receiver; Features super capacitor that provides memory & alarm memories for up to 1 hour during a power disruption, eliminating the need for a battery backup; Features sleep & nap timers & snooze function;