Conair AM/FM Alarm Clock Radio Relaxation and Nature Sound Therapy Noise Maker, Feature 10 Sounds with 60-Minute Auto Off Timer, DC Adapter and Battery Option 10 Therapeutic Rhythm and Nature Sounds helps Soothe and Keep you Relaxed Clock with AM/FM Radio; and Convenient Volume Control to suit your needs 60-Minute Auto Off Timer Helps Conserves Energy; and works great for babies Powered by a DC Adapter or Batteries for flexible placements around the House