I have started listening to binaural sounds (left side wave of 89.75hz, right side wave of 85.25hz) for meditation every day for 10 to 15 mins in morning. I feel calm, relaxed and focused after that.

I wanted to know, are there any side effects of listening to this ? Like can I get health problems or brain problems or tumor or cancer or anything damaging to body?

Would be thankful if anyone shares any knowledge on this.