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
Little Dog BarkingSound of Pure Rain Day Shouting Sound Effects Kids Playing Sound Button Sound Sound EffectMissiles Hit Sound EffectPanting Sound Eating and Biting Sound Effect Amazing Sound Effect Thunder Noise
Soundany.comFunny Ringtones and Timer! Play and Countdown Online!
Eating and Biting Sound Effect 
Amazing Sound Effect Thunder Noise 
Thunder And Lightning Sounds
Shout Sound
Hi, if you can share Soundany to friends, that Soundany will be faster development, thank you!