Light Rain and Thunder 10 Hours - Ambient Nature Sounds
Light Rain and Thunder High-Quality Sounds. For Sleeping / Relaxation - 10 Hours. Relax, study or sleep for hours or even a few minutes to this relaxing background white noise of rain and thunder.
I used this to study and to help my concentration for my finals during University, it helped me a lot! Even if I just wanted to relax and now my patients listen to this after and before some dental procedure (and they love it :P)