Sennheiser HD 400U are full-size wired closed-back headphones, the main feature of which is the built-in USB-C digital interface. The model is a modernized continuation of the popular HD 400S series, designed specifically for direct connection to modern smartphones, tablets, and laptops without the need for adapters and external DACs.
Thanks to the USB-C connector, they can be directly connected to modern smartphones, tablets, and other devices without the need for an adapter, making them more convenient for everyday use.
The headphones provide high-quality audio transmission, without loss, with a resolution of up to 24-bit/96kHz, allowing you to hear every nuance and detail in the music.
Signature Sennheiser sound. The 32mm dynamic transducers provide a tight, voluminous bass, natural mid-frequencies, and detailed, clean highs without sharpness.
Passive noise isolation. The closed acoustic design and snug-fitting earpads effectively block out external noises, allowing you to comfortably listen to music on public transport, in the office, or while studying.
Detachable cable and headset. The model is equipped with a 1.4-meter detachable cable with a built-in omnidirectional MEMS microphone and a single-button remote for answering calls and controlling tracks.
Ergonomics and portability. The lightweight foldable design (only 217g) with foldable earcups allows you to compactly pack the headphones in a backpack or the included fabric case.
The package includes a case for convenient storage, a detachable cable, ensuring safe transportation of the headphones.
Package includes:
- Headphones
- Cable
- Case
- Manual






































