Two slightly different frequencies, one in each ear ?your brain perceives a third "beat" that can influence your mental state.
Choose a brainwave preset or dial in your own frequencies. Headphones required ?binaural beats only work when each ear receives a separate tone.
🎧 Headphones required for binaural effect
A slightly different frequency is played into each ear ?for example, 200 Hz in the left and 210 Hz in the right. Your brain perceives a third, "phantom" tone pulsing at the difference: 10 Hz.
The theory is that your brainwaves tend to synchronize with the perceived beat frequency ?a process called frequency following response (FFR). A 10 Hz beat may nudge your brain toward alpha waves, associated with relaxation.
Delta (1-4 Hz) for deep sleep, Theta (4-8 Hz) for meditation, Alpha (8-14 Hz) for calm focus, Beta (14-30 Hz) for alertness, Gamma (30-50 Hz) for peak cognition.
Your brain produces electrical oscillations at different frequencies depending on your mental state. Binaural beats aim to nudge these oscillations toward a target frequency.
The slowest brainwaves, dominant during dreamless deep sleep. Delta waves are associated with healing, regeneration, and the immune system. A 2 Hz binaural beat may promote deeper sleep.
Present during light sleep, deep meditation, and the hypnagogic state (between waking and sleeping). Associated with creativity, intuition, and vivid imagery. A 6 Hz beat is popular for meditation.
The "relaxed awareness" state. Alpha waves increase when you close your eyes and relax. Associated with calm focus, stress reduction, and light meditation. 10 Hz is the most common alpha target.
Active thinking, problem-solving, and alert concentration. Higher beta ranges (20-30 Hz) are linked to anxiety, while lower beta (14-18 Hz) supports focused work. Try 18 Hz for studying.
The fastest brainwaves, associated with peak cognitive function, insight, and information processing. Gamma is studied in connection with heightened perception and consciousness. Try 40 Hz.
The frequency following response (FFR) is a real, measurable phenomenon ?your auditory cortex does respond to binaural beat frequencies. However, whether this translates to meaningful changes in mood, focus, or sleep is debated. Many studies show subjective improvements, but placebo-controlled studies have mixed results. Most users find them helpful as a relaxation or focus aid regardless of mechanism.
Binaural beats require each ear to receive a different frequency. With speakers, both ears hear both frequencies, and the brain cannot create the beat effect. Headphones isolate each channel to its respective ear. Over-ear headphones tend to work best.
Delta (1-4 Hz) is best for deep sleep. Start with the Delta preset and listen at a low volume as you fall asleep. The sleep timer ensures the sound stops automatically so it doesn't disturb your sleep later.
Beta (14-30 Hz) is associated with active focus and concentration. The default beta preset at 18 Hz is a good starting point. Some people prefer Alpha (10 Hz) for less intense, calmer focus ?experiment to find your preference.
Most research uses sessions of 15-30 minutes. Some users listen for longer periods while working or sleeping. There's no strict limit, but keep the volume low ?it doesn't need to be loud to work. The beat effect is perceived even at very low volumes.
There is a theoretical concern that rhythmic auditory stimulation could trigger seizures in people with photosensitive or sound-sensitive epilepsy. If you have epilepsy or a seizure disorder, consult your doctor before using binaural beats or any brainwave entrainment technology.
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"10 Hz in each ear, one state of mind at a time"