2.5Hz infrasound have sedative effects on humans - 15 minutes

30 minutes of annoying baby cry sound

Fan heater - sleep sound effect

One hour of crying child sound effect

FLOWER BRACELET WIHTOUT USING A LOOM - RAINBOW LOOM

Best speakers test sound video (10 -20000 Hz) - 15 minutes of linear amplitude, full range, bass, medium and treble - video spectrum and high quality audio

Brownian noise for sleep, relaxation, meditation, studying, stress relief, focus, sound therapy - 60 minutes (one hour)

19Hz Infraschall - die Angstfrequenz - verursacht Unbehagen, Schwindel, verschwommenes Sehen (durch Vibration der Augäpfel), Hyperventilation und Angst, was möglicherweise zu Panikattacken führt - 60 Minuten (eine Stunde)

Son d'aspirateur, bébé, bruit blanc naturel, nourrisson, nouveau-né, sommeil, relaxation, apaisement, colique, astuce de sommeil, recharge - 60 minutes (une heure) de haute qualité sonore

Rosa Rauschen und Ton zur Beruhigung, konzentriert, konzentrieren, schlafen, entfernen Umgebungsgeräusche, Kind schlafen, neugeboren, Säugling, Koliken, Arbeitszimmer, Hausaufgaben - 1 Stunde

Asthma Frequenz Heilung - überwindet Asthma natürlich mit diesem Klang und Geräusch - 1 Stunde

Awareness brain waves ranges from 14-40 hz (60 minutes - one hour)

Odaklanma, konsantrasyon artışı, ev ödevleriniz ve okulunuz için zihninizi, sesinizi ve arka plan sesinizi sakinleştirin - bir saat

고품질 지진 소리와 소음 1 시간

Child playground ambient sound - 60 minutes (one hour) of high quality sound

Şelale sesinin rahatlatıcı sesi - bir saat yüksek ses kalitesi

우주는 72, 144, 432와 같은 고조파 시리즈를 기반으로합니다 - 1 시간

인식 뇌파는 14-40 Hz에서 범위 (1 시간)

1 시간 역 카운트 다운 타이머

Lautsprecher Testton (15-20000 Hz) - 60 Minuten (eine Stunde) lineare Amplitude, Reichweite, Bass, Höhen und mittel - Videospektrum und qualitativ hochwertige Audio-

Incredible real earthquake sounds and noises - 60 minutes (one hour)

천식의 주파수 치유 - 천천히이 소리와 소음으로 천식을 극복하십시오 - 1 시간

Awareness brain waves ranges from 14-40 hz (30 minutes)

Traitement de l'hyperacousie et peut-être guérir avec la fréquence sonore (enrichissement sonore) - une heure

19Hz의 저주파 - 두려워 주파수 - 60분 (1 시간) - 원인이 불편, 현기증, 시력 저하, 호흡과 공포 (당신의 시선을 진동에 의해), 아마도 공황 선도

Speakers test sound (15-20000 Hz) - 60 minutes (one hour) linear amplitude, full range, bass, medium and treble - video spectrum and high quality audio