Sennhesier is expanding its line of True Wireless earbuds with the release of the Sennheiser CX 400BT earbuds. Based on the successful Momentum True Wireless 2 earbuds, the CX 400BT offer the same stunning sound at a lower price point. Beyond sound quality, Sennheiser’s new earbuds offer a cozy design, eight different custom controls, EQ presets, and an all-encompassing smartphone application.

Sennheiser CX 400BT True Wireless Earbuds ()
Sennheiser CX 400BT Key Features:
- 7mm dynamic drivers
- Built-in EQ with custom presets
- Sennheiser Smart Control app technology
- Customizable touch controls
- Ergonomic design with four adaptable sizes
- Voice assistant
- 20 hours of battery life
- SBC, AAC, and aptX codec support
- Available in black or white
Quality sound for everyday use:
The CX 400BT True Wireless Earbuds are designed to enhance user’s everyday listening experience. They use the same acoustic technology as the popular Momentum True Wireless 2 earbuds released by Sennhesier earlier this year. The 7mm dynamic drivers provide full, defined sound with sharp highs and noticeable bass. The built-in EQ gives users freedom to adjust their sound as they please and save presets using the Sennhesier app (more on that below). Whether you’re using the CX 400BT earbuds for music on your daily commute, conference calls at work, or podcast listening while relaxing, you’ll notice and enjoy the difference.
Comfort and usability:
Sennheiser’s new earbuds incorporate an ergonomic design for comfortable, all-day listening. To fit the needs of every listener, Sennheiser offers four ear adapter sizes so the earbuds are snug and don’t fall out. The CX 400BT features eight different easily accessible custom controls to improve the user experience. Controls such as pausing, skipping a song, adjusting volume, and using voice assistant can be done with different tap and hold combinations on the earbuds. The voice assistant is useful when handling voice calls or you need to be hands-free. Don’t worry about running out of battery — the CX 400BT earbuds last up to 20 hours with the charging case, and up to an hour with a quick 10-minute charge.

Sennheiser Smart Control App:
The CX 400BT wireless earbuds are already exceptional, but the accompanying app takes them to the next level. The Sennheiser Smart Control App allows users to set up custom controls, manage Bluetooth connections, adjust audio EQ, and more. As mentioned, the eight different custom controls can be configured in the Smart Control App and customized to each listener’s liking. The Smart Control App gives users the freedom to lower the bass, raise the treble, minimize the midtones, and more. Listeners can even save different EQ presets to match the genre they are listening to.
The new Sennheiser CX 400BT True Wireless Earbuds are now available for preorder for in both black and white at Adorama.