The dual alarm options provide you with alarms for individual wake times and individual alarm sounds. Select from blue, purple or amber Digital LCD colors for your display. This clock radio features a line-in for your CD or MP3 player, so you can wake up to your favorite tunes. The T439S features an AM/FM radio, an extra large Snooze Bar, a 90-minute Programmable sleep setting and One-touch Advance Alarm with settings for 7, 5 or 2 days. This clock radio uses an internal Lithium Battery to maintain clock and alarm operation in the event of a blackout or other power failure.