Beta Waves, Keeping Your Attention Focused & Solving Problems, Binaural Beats

13 Hz Beta Brain Waves, Binaural Beats

14 Hz Improvement Concentration and Alertness, Binaural Beats

15 Hz Quick Thinking Ability, Binaural Beats

16 Hz Improvement in Problem-Solving Capacity, Binaural Beats

20 Hz Self-Confidence, Binaural Beats

13 Hz Beta Brain Waves, Binaural Beats (Extended Version)

14 Hz Improvement Concentration and Alertness, Binaural Beats (Extended Version)

15 Hz Quick Thinking Ability, Binaural Beats (Extended Version)

16 Hz Improvement in Problem-Solving Capacity, Binaural Beats (Extended Version)

20 Hz Self-Confidence, Binaural Beats (Extended Version)