HD 400U
​The compact HD 400U headphones carry forward the legacy of the HD 400S, known for its bass-driven acoustics and backpack-friendly portability. The closed-back design provides exceptional passive isolation, ideal for focused listening at home, work, or school. The included storage pouch and detachable cable keep them tidy during transport, ready for a listening session anytime, anywhere.

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​CX 80U
​For those that prioritize a compact, in-the-ear fit, the CX 80U picks up where the CX 80S left off with balanced-yet-punchy sound that isolates the listener from the distractions of the outside world. Three sizes of ear tips ensure a snug, comfortable fit whether you are tackling a research paper, multiplayer battle royale, or a new album from your favorite artist.
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Compatibility & Availability
​The USB interface for each offers class compliant, plug and play compatibility for iOS, iPadOS®, Android™, ChromeOS™, MacOS®, Windows®, SteamOS devices and more. Both the CX 80U and HD 400U utilize a MEMS microphone for low-noise, full-range voice pickup in a compact footprint. The CX 80U (MSRP $39.95 USD / $49.95 CAD) and HD 400U (MSRP $99.95 USD / $139.95 CAD) are available today from authorized dealers and sennheiser-hearing.com.