Introducing a NEW vivid LED dual alarm clock featuring a charging port for you smartphone or MP3 player. With many adjustable settings, you can set it to how you like it. Self setting time using WWVB radio frequency, your clock will be the most accurate and will automatically switch to/from Daylight savings time. Indicates active alarms (A1/A2), DST, and your clock's WWVB signal strength. Adjust brightness settings & snooze duration up to 60 minutes. Includes power backup battery and AC adapter. Large blue LED digits you can see from across the room.