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Sennheiser 508901 CX-400BT True Wireless Earbuds White — main product image
Sennheiser

Sennheiser 508901 CX-400BT True Wireless Earbuds White

★★★★★4.2 (1240 reviews)

Experience Superior Sound on the Go with Sennheiser CX-400BT True Wireless Earbuds Enjoy exceptional audio quality wherever life takes you with the Sennheiser CX-400BT True Wireless Earbuds. Featuring Sennheiser's cutting-edge audio technology, these earbuds deliver high-fidelity sound with deep ...

$316.64*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Experience Superior Sound on the Go with Sennheiser CX-400BT True Wireless Earbuds

Enjoy exceptional audio quality wherever life takes you with the Sennheiser CX-400BT True Wireless Earbuds. Featuring Sennheiser's cutting-edge audio technology, these earbuds deliver high-fidelity sound with deep bass, clear mids, and detailed highs. With customizable controls, long-lasting battery life, and a comfortable design, the CX-400BT ensures an uncompromising listening experience.

Specifications:

  • Audio Technology: Sennheiser Custom Drivers
  • Noise Cancellation: Passive
  • Audio Codecs: SBC, AAC, aptX
  • Battery Life: Up to 20 hours (7 hours on a single charge, 13 hours with charging case)
  • Color: White

Key Features

Original brand product.

Two-year warranty against factory defects.

Specifications

Model
CX-400BT
Type
True Wireless Earbuds
Color
White
Warranty
Two-year against factory defects

Pros & Cons

👍 Pros

  • As an original brand product, the Sennheiser 508901 CX-400BT ensures authentic quality and performance from the manufacturer.
  • A two-year warranty against factory defects provides extended assurance and support for the product.
  • Being True Wireless Earbuds, they offer complete freedom from cables for enhanced mobility and convenience.
  • Sennheiser's expertise in audio suggests a focus on sound quality, which is crucial for in-ear headphones.
  • The white color offers a distinct aesthetic for users preferring a lighter, cleaner look compared to standard black options.

👎 Cons

  • The listing is very minimal on features, providing no details about battery life, sound drivers, noise cancellation, or water resistance.
  • Without specific sound profiles or codec support mentioned, it's difficult to assess their audio performance beyond the brand reputation.
  • The lack of specific features like active noise cancellation or transparency mode might be a drawback for users seeking advanced functionalities.
  • Limited information on controls (e.g., touch, button, customizable) makes it hard to gauge user interaction and convenience.
  • The "True Wireless" design, while convenient, means they are small and could be easily misplaced if not stored carefully.

Frequently Asked Questions

The Sennheiser 508901 is a pair of CX-400BT True Wireless Earbuds in white.
Yes, they come with a two-year warranty specifically covering factory defects.
Yes, these are True Wireless Earbuds, offering a completely cable-free listening experience.
These earbuds are white.
The provided product information does not include details on battery life, charging case features, or specific sound technologies.
Without specific details on water or sweat resistance, it's not possible to definitively state their suitability for sports or intense workouts.
As a Sennheiser original brand product, there is an expectation of quality audio performance, although specific sound characteristics are not detailed in the features.

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