Dual alarm clock radio, digital AM/FM radio with station memory presets (10 FM, 10 AM), 1.2' red LED (light emitting diode) display, wake to radio or alarm, sleep timer, and snooze. Dimmer control, digital volume control, 3.5 mm (millimeter) audio input, built-in speaker, AC (alternating current) power. Battery back-up requires 2 AAA batteries (not included).