{"product_id":"sennheiser-hd-400s","title":"Sennheiser HD 400S Over-Ear Headphones","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClosed-back over-ear, passive isolation\u003c\/li\u003e\n\u003cli\u003eFoldable for travel and daily carry\u003c\/li\u003e\n\u003cli\u003eWired stereo — no charging, no pairing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBought as an authorized Sennheiser retailer and backed by a 1-year warranty and 45-day returns.\u003c\/p\u003e","brand":"Sennheiser","offers":[{"title":"Default","offer_id":45376632029319,"sku":"Sennheiser HD 400S","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/7768125042.jpg?v=1785501668","url":"https:\/\/tonepier.com\/products\/sennheiser-hd-400s","provider":"TonePier","version":"1.0","type":"link"}