1. This product is a combined audio and alarm clock device. It makes enough noise to cover unnecessary noise interference. 2.12 High quality soothing sound/noise machine: white, brown and pink noise, three kinds of fan sound, forest (birds), lullaby, summer night (crickets), rain, storm, ocean waves. Listen to your favorite voice and fall asleep; It will automatically turn off at the scheduled time (15-150 minutes or continuously) 3. Dual alarm clock, with 6 natural alarm sounds (flute, bird, piano, buzzer, bell and beep), 25 levels of alarm volume - the maximum volume is suitable for most sleepers; You can turn off the alarm clock or take a 9-minute nap (up to 7 times). 4. It is convenient to read remotely through the 2.84-inch screen. The wheel dimmer allows for quick brightness adjustment between 0-100% 5. Keep the clock setting to ensure you wake up on time when you need it even if the power supply fails. In plug-in power mode, the USB port on the back can be activated during sleep mode to charge your phone and iPad.