Casque Sennheiser HD 400S

The Sennheiser HD 400S are wired supra-aural (around-ear) headphones designed for everyday use. They feature a comfortable headband, closed-back earcups that reduce background noise, and a detachable single-sided cable with an integrated one-button remote and microphone. The foldable, lightweight construction makes them easy to carry and store while Sennheiser dynamic drivers provide clear treble and strong, well-extended bass for an accurate listening experience.

Advantages

Renowned Sennheiser sound quality delivers a balanced audio signature with dynamic bass and clear highs. The integrated microphone and one-button remote on the cable let you control music playback and handle calls without removing the headphones. Closed-back around-ear design limits external noise for more focused listening, and the lightweight, foldable frame enables compact storage and portability.

Suitable for

• Everyday music listening at home or on the go
• Hands-free phone calls and remote control of playback
• Commuting and travel where compact, foldable headphones are preferred

Key specifications

• Impedance: 18 Ω
• Connector: 3.5 mm angled plug
• Cable length: 1.4 m (detachable single-sided cable, RCS 400)
• Weight: 217 g
• Sensitivity: 44 dBV/Pa
• Ear coupling: Supraaural (around-ear)
• Connectivity: Wired
• Color: Black

How to use

Connect the detachable RCS 400 cable to the headphones and plug the 3.5 mm angled jack into your device. Use the one-button remote to play/pause music or to answer and end calls; the in-line microphone picks up your voice for hands-free conversations. Fold the headphones along the hinges for compact storage or transport.

Recommendations

For best audio performance, use with devices that provide a standard 3.5 mm output. Keep the detachable cable dry and avoid excessive bending near the connector to prolong cable life. Store the headphones folded in a protective case or pouch when not in use.