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Monaural Beats

• What are monaural beats?
• How do monaural beats help with sleep?
• How effective are monaural beats?
• Are there any risks of monaural beats?

Volume Setting

• What are the criteria for optimal volume settings?
• The recommended volume is too loud for me. Should I turn down the volume?
• I cannot hear the sounds that well when the volume is set to the recommended level. Should I turn up the volume?
• Can I use earbuds for listening?

Setting

• Can I use the app while charging my device?
• How much battery is used on average when using the app?