Cerebral Frequency Lock (30 Hz Focus Frequency)
Deep Study - 30 Hz Binaural Focus Frequencies: Study Music for Deep Focus and Complete Concentration,2 mins, 50 secs
- Cerebral Frequency Lock (30 Hz Focus Frequency)
Deep Study - 30 Hz Binaural Focus Frequencies: Study Music for Deep Focus and Complete Concentration,2 mins, 50 secs