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
Kids Giggling Sound EffectHumming Sound Sound of a Tornado ComingSound of Pure Rain Day A Sigh of DisappointmentYelling Sound Effects Howling of The GorillaChewing Sound Effect Sound of High Heels WalkingBig Drops of Water(Drip Two Times)
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Soundany.comFunny Ringtones and Timer! Play and Countdown Online!
Chewing Sound Effect 
Waterfall Sounds
White Noise Fan
Hi, if you can share Soundany to friends, that Soundany will be faster development, thank you!