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
Thunderstorms and Rain SoundsLaughter Sound Crowd Laughing Sound Effect Beast Bites and Swallows Sound EffectsTo Eat a Sound(a Gag)Crowd Chanting Sound EffectMan Laughing Hysterically Sound Effect Walking Sound(Plank,Man,Sneaker)Thunder and Lightning Sleep SoundsLaughter Sound Effect
Soundany.comFunny Ringtones and Timer! Play and Countdown Online!
Laughter Sound Effect 
Shouting Sound
Humming Sound
Hi, if you can share Soundany to friends, that Soundany will be faster development, thank you!