1 6

Sennheiser

Sennheiser HD 400S Over-Ear Headphones

Sennheiser HD 400S Over-Ear Headphones

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$32.99 USD
$32.99 USD
Sale Sold out
Shipping calculated at checkout.

The Sennheiser HD 400S is a closed-back, over-ear headphone built for people who want one pair that works everywhere — desk, couch, commute. Passive noise isolation from the closed cups keeps room noise out without any battery, ANC hiss, or app to manage.

The foldable design is the practical part: it collapses down to go in a bag, so this is an easy pick as a travel or office set alongside a more serious open-back rig at home. Straightforward wired use means no pairing, no latency, and nothing to charge before a flight.

  • Closed-back over-ear, passive isolation
  • Foldable for travel and daily carry
  • Wired stereo — no charging, no pairing

Bought as an authorized Sennheiser retailer and backed by a 1-year warranty and 45-day returns.

View full details
Good to know

Frequently asked questions

Is this unit genuine?

Yes. TonePier is an authorized retailer — every unit comes from the brand or its official distributor, carries a valid serial number and is covered by the full manufacturer warranty.

How long does shipping take?

SKUs stocked in our US warehouse ship within 1–2 business days. Items shipped direct from our China hub typically arrive in 8–15 days with full tracking. The product page tells you which applies before you order.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.