To start it off I was so glad to have been able to receive this machine it came at an excellent time. I love everything about it. I put it on and loved all the noises it came with. The volume quality is high the noises are great. This one sound I really loved it sounded like flute noises that reminds me so much of summer and quiet warm nights. It definitely helped me fall asleep I set to turn after some hours ad it worked. There are no cons at all I love everything about it and definitely recommend it.