What is CustomTune and how does it work?

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CustomTune is Bose's proprietary technology that automatically calibrates audio and noise cancellation for your specific ear geometry.

How It Works

| Step | What Happens | |------|--------------| | 1. Put headphones on | Brief calibration tone plays | | 2. Acoustic analysis | Microphones measure how sound interacts with your ears | | 3. Optimization | Audio and ANC adjust based on analysis |

The process takes 1-2 seconds and runs automatically—no user action required.

What Gets Optimized

• Sound Accuracy: Compensates for ear shape variations
• Bass Response: Adjusts based on seal quality
• ANC Performance: Tailors noise cancellation to your anatomy
• Frequency Balance: Ensures consistent reproduction

Why This Matters

Everyone's ears have different physical characteristics:

• Ear canal depth
• Outer ear (pinna) shape
• Acoustic properties

These variations significantly affect how sound reaches your eardrum and how effectively noise cancellation works. Two people wearing identical headphones will perceive them differently—CustomTune minimizes this variation.

CustomTune vs. Manual EQ

| Feature | Purpose | Control | |---------|---------|---------| | CustomTune | Technical optimization for anatomy | Automatic | | Manual EQ | Personal preference tuning | User-controlled |

CustomTune ensures optimal performance for your ear shape. EQ adjustments layer on top for personal taste preferences.

Recalibration

CustomTune runs each time you wear the headphones. To trigger a fresh calibration (if sound seems off), simply remove and replace the headphones—takes one second.