1.You can set each sound's timing time (for example, 5 minutes later) and the number of plays (for example: 5 plays)! 2.The timer dialog box must remain displayed! 3.The timer will be delayed when the device lock screen is displayed until it is displayed normally!
Sound Recommendation
Humming Sound Singing Voice Water Droplets Sound Effect(Open Space)Sound in WaterThunder Before The StormSinging Sound Effects Sound of Drinking and SwallowingLittle Dog BarkingSound of Swallowing in Large MouthSigh Sound Effect
Soundany.comFunny Ringtones and Timer! Play and Countdown Online!
Sigh Sound Effect 
Vomiting Sound
Thunder And Lightning Sounds
Hi, if you can share Soundany to friends, that Soundany will be faster development, thank you!