Sennheiser
Sennheiser CX400TW1 White BT Wireless Earbuds (Renewed)
★★★★★
Enjoy Premium Sound with Renewed Sennheiser CX 400BT True Wireless Earbuds Experience exceptional audio quality and wireless freedom with these Sennheiser CX 400BT True Wireless Earbuds. Professionally renewed to work and look like new, these earbuds feature noise cancellation, customizable touc...
$112.99*
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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
Enjoy Premium Sound with Renewed Sennheiser CX 400BT True Wireless Earbuds
Experience exceptional audio quality and wireless freedom with these Sennheiser CX 400BT True Wireless Earbuds. Professionally renewed to work and look like new, these earbuds feature noise cancellation, customizable touch controls, and Bluetooth connectivity for music and calls on the go.
Specifications:
- Type: True Wireless Earbuds
- Connectivity: Bluetooth
- Features: Noise Cancellation, Customizable Touch Controls
- Condition: Renewed
- Color: White
Key Features
Experience superior sound without compromise -Powered by German-made 7mm TrueResponse transducers with a wide range of Bluetooth codec support (AAC, aptX, SBC)
Long battery life - Get up to 27 hours of music playtime with on the go charging with the high quality case that comes with the product
Passive Noise Cancellation and light-weight ergonomic design -The ergonomic design offers optimal comfort and a secure fit with 4 ear adapter sizes for excellent passive noise cancellation
Full digital control -Our Smart Control App for iOS , Android allows earbud functionalities to be personalized for your everyday needs and enables smooth pairing; fully adaptable controls for music, calls and voice assistant
Specifications
Transducer Size
7mm
Transducer Type
TrueResponse
Max Playtime
Up to 27 hours (with charging case)
Bluetooth Codec Support
AAC, aptX, SBC
Noise Cancellation
Passive
Ear Adapter Sizes
4
App Compatibility
Smart Control App (iOS, Android)
Pros & Cons
👍 Pros
- Powered by German-made 7mm TrueResponse transducers, delivering superior sound quality.
- Offers a long battery life, providing up to 27 hours of music playtime with the included charging case.
- Supports a wide range of Bluetooth codecs, including AAC, aptX, and SBC, for versatile audio streaming.
- Features a light-weight ergonomic design with 4 ear adapter sizes for optimal comfort and a secure fit.
- Provides excellent passive noise cancellation due to its ergonomic design and various ear adapter sizes.
- Equipped with the Smart Control App for iOS and Android, allowing for personalized earbud functionalities and smooth pairing.
- Offers fully adaptable controls for music, calls, and voice assistant, enhancing user convenience.
👎 Cons
- The description does not specify if active noise cancellation (ANC) is available, only mentioning passive noise cancellation.
- Information on the charging time for both the earbuds and the case is not provided.
- The water resistance rating (e.g., IPX rating) is not mentioned, which could be a factor for active users.
- Specific details on microphone quality for calls are not outlined, only mentioning adaptable controls for calls.
- The material construction of the earbuds and charging case is not described, limiting insight into durability.
Frequently Asked Questions
What type of sound quality can be expected from these earbuds?
These earbuds are powered by German-made 7mm TrueResponse transducers, designed to deliver superior sound without compromise.
How long does the battery last with these earbuds?
The earbuds offer a long battery life, providing up to 27 hours of music playtime when used with the on-the-go charging case.
Do these earbuds have active noise cancellation?
These earbuds feature excellent passive noise cancellation, thanks to their light-weight ergonomic design and four ear adapter sizes for a secure fit. Active noise cancellation is not specified.
Can I customize the controls of the earbuds?
Yes, the Sennheiser Smart Control App for iOS and Android allows you to personalize earbud functionalities and offers fully adaptable controls for music, calls, and voice assistant.
Are there different ear adapter sizes included for a better fit?
Yes, the ergonomic design ensures optimal comfort and a secure fit with the inclusion of four different ear adapter sizes.
What Bluetooth codecs do these earbuds support?
These earbuds support a wide range of Bluetooth codecs, including AAC, aptX, and SBC, ensuring broad compatibility and quality audio streaming.
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