Surprised at the very few sounds provided. The looping of the sounds are very short. A 32gb micro SD can hold hours of audio. You have to hold the unit to push the buttons or it will fall over. This is weird because it's a misting machine, so it's designed to hold water an oil but can easily be knocked off the nightstand trying to hit snooze. If you dim the clock numbers and play a sound you will hear a high pitched hum in the background. The idea is great but the engineers missed the mark.