Can you listen to just 1 track all night that you select such as "rain" or does the app make you cycle through, e.g., all the nature sounds? Thanks. I am wanting to know this to decide on whether to purchase them. Also, right now I use a sound machine every night and I'm wondering how people like the sound being right in their ears in comparison to in the room?
Also, can you hear things in the room you might want to hear like your dog barking?
Also, I read one review where they said some tracks are only say 7 seconds long before they start over? When most tracks start over is it noticeable or pretty seamless?