Bose QuietComfort Earbuds II Feature CustomTune Audio Personalization

CustomTune technology analyzes ear canal shape to personalize noise cancellation and sound performance.

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Bose QuietComfort Earbuds II Feature CustomTune Audio Personalization

CustomTune technology analyzes ear canal shape to personalize noise cancellation and sound performance. The Bose QuietComfort Earbuds II deliver up to 24 hours of total battery life and include 9 fit combinations for stability.

Bose Updates Audio Lineup With Ear Canal Analysis Technology

The premium wireless audio market continues to evolve as manufacturers shift focus toward biometric personalization. Bose has introduced the QuietComfort Earbuds II, a product designed to address the physical differences in human ear anatomy. This release follows a growing trend where hardware uses software algorithms to adjust output based on the user's specific physical traits.

CustomTune System Calibrates Sound and Silence

The primary technical advancement in these earbuds is the CustomTune technology. When a user places the buds in their ears, the device emits a proprietary chime to map the internal structure of the ear canal. The internal microphones capture the acoustic reflections of this chime to build a unique sound profile. As reported by bose.com, this process allows the hardware to calibrate both the frequency response and the active noise cancellation filters in under a second.

Technical specifications for the Bose QuietComfort Earbuds II include:

  • Active Noise Cancellation: Proprietary system utilizing internal and external microphones.
  • Battery Life: Up to 6 hours of continuous playback per charge.
  • Total Capacity: 24 hours of total use when including the charging case reserves.
  • Rapid Charging: A 20-minute charge provides approximately 2 hours of listening time.
  • Charging Duration: 1 hour for the earbuds and 3 hours for the case via USB-C.
  • Customization: Integrated EQ settings for manual adjustment of bass, mid-range, and treble.
  • Color Options: The current lineup includes a Midnight Blue finish.

CustomTune technology uses a special chime to learn your ear canal’s shape... allowing your buds to optimize noise cancellation and sound performance that fits you perfectly.

— bose.com

Physical Fit and Stability Hardware

Beyond the software-driven audio adjustments, Bose has modified the physical interface of the earbuds. Instead of a single-piece silicone tip, the company uses a two-piece Fit Kit system. This system separates the eartips from the stability bands, which are designed to grip the outer curve of the ear. This modular approach provides 9 different size combinations to ensure the device remains secure during movement while maintaining an acoustic seal.

Choose from 9 combinations of eartips and stability bands to find the right fit.

— bose.com

Market Position and Battery Performance

Apple AirPods Pro and the Sony WF-1000XM5. The 6-hour runtime per charge is standard for the category, though the 24-hour total capacity with the case ensures parity with most modern flagship alternatives. The inclusion of a Midnight Blue variant suggests a move to offer more aesthetic variety than the traditional black or white options.

Usage Requirements and Availability

For users seeking a highly personalized fit, the combination of mechanical stability bands and acoustic mapping offers a distinct alternative to generic fit models. The reliance on the Bose Music app for EQ adjustments means users will need a smartphone to access the full suite of customization tools.

Source: Bose — bose.com

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