Features:
★ True generated white noise.
★ Can work in background.
★ Volume controlled by physical buttons.
★ Simplicity.
★ Installs to SD or Phone.
★ Low battery usage.
★ Great for relax / sleep.
★ Selectable quality.

How to:
Press big "Play" button and white noise will be played, then you may stay in app or press home / back to continue playing.

Ads:
May be easily ignored if you don't want to support this app.
They appear on exit.