{"product_id":"sennheiser-hd-400u-usb-c-headphones-black-800126","title":"Sennheiser HD 400U USB-C Headphones Black | 800126","description":"\u003cstyle\u003e\n.eur-wrap{font-family:Arial,Helvetica,sans-serif;color:#16324a;line-height:1.55;max-width:1180px;margin:0 auto}\n.eur-wrap *{box-sizing:border-box}.eur-breadcrumb{font-size:13px;color:#5b7083;margin:0 0 14px}\n.eur-hero{background:linear-gradient(135deg,#003B71,#005CB9);color:#fff;padding:30px;border-radius:14px}\n.eur-hero h1{font-size:30px;line-height:1.2;margin:0 0 10px}.eur-deck{font-size:17px;margin:0;max-width:850px}\n.eur-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0}\n.eur-stat,.eur-card{background:#F2F7FC;border:1px solid #dbe8f3;border-radius:10px;padding:14px}\n.eur-stat strong{display:block;color:#003B71;font-size:13px;margin-bottom:4px}\n.eur-section{margin:24px 0}.eur-section h2,.eur-section h3{color:#003B71;margin:0 0 10px}\n.eur-quote{border-left:4px solid #FFD200;background:#F2F7FC;padding:14px 16px;margin:18px 0;font-weight:700;color:#003B71}\n.eur-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.eur-grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}\n.eur-card h3{font-size:16px;margin:0 0 6px;color:#005CB9}.eur-card p{margin:0}\n.eur-verdict{display:grid;grid-template-columns:1fr 1fr;gap:12px}.eur-verdict .eur-card:first-child{border-top:3px solid #005CB9}.eur-verdict .eur-card:last-child{border-top:3px solid #FFD200}\n@media(max-width:760px){.eur-stats,.eur-grid3,.eur-grid6,.eur-verdict{grid-template-columns:1fr}.eur-hero{padding:22px}.eur-hero h1{font-size:25px}}\n\u003c\/style\u003e\u003cdiv class=\"eur-wrap\"\u003e\n\u003cdiv class=\"eur-breadcrumb\"\u003eHome › Audio › Headphones\u003c\/div\u003e\n\u003csection class=\"eur-hero\"\u003e\u003ch1\u003eSennheiser HD 400U USB-C Headphones Black | 800126\u003c\/h1\u003e\n\u003cp class=\"eur-deck\"\u003eClosed-back over-ear headphones with 18 Hz to 20 kHz and 18 ohms.\u003c\/p\u003e\u003c\/section\u003e\u003cdiv class=\"eur-stats\"\u003e\n\u003cdiv class=\"eur-stat\"\u003e\n\u003cstrong\u003eDesign\u003c\/strong\u003eClosed-back over-ear headphones\u003c\/div\u003e\n\u003cdiv class=\"eur-stat\"\u003e\n\u003cstrong\u003eFrequency Response\u003c\/strong\u003e18 Hz to 20 kHz\u003c\/div\u003e\n\u003cdiv class=\"eur-stat\"\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e18 ohms\u003c\/div\u003e\n\u003cdiv class=\"eur-stat\"\u003e\n\u003cstrong\u003eConnection\u003c\/strong\u003eUSB-C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"eur-section\"\u003e\u003cp\u003eThe Sennheiser HD 400U USB-C Headphones Black is a headphone designed for home listening. Its core specification combines Closed-back over-ear headphones, 18 Hz to 20 kHz and 18 ohms. That feature set makes it a practical choice when you want a straightforward wired listening setup with no charging or pairing required. The emphasis stays on stated hardware and connection details, making it easy to see where this model fits in a real listening or home-entertainment setup.\u003c\/p\u003e\n\u003cp\u003eFor day-to-day ownership, connection is USB-C, while cable is Detachable single-sided cable. Call Control is specified as Inline remote and microphone. Those details shape how the product connects, how it is used and what you need from the rest of your system. It is best suited to desktop audio and wired music systems, with the exact Sennheiser model features kept front and centre so you can choose it for the capabilities that actually matter.\u003c\/p\u003e\n\u003cdiv class=\"eur-quote\"\u003eA clear, specification-led choice for home listening.\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"eur-section\"\u003e\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cdiv class=\"eur-grid3\"\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eHome listening\u003c\/h3\u003e\n\u003cp\u003eWell suited to this use based on the model’s stated design and connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eDesktop audio\u003c\/h3\u003e\n\u003cp\u003eWell suited to this use based on the model’s stated design and connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eWired music systems\u003c\/h3\u003e\n\u003cp\u003eWell suited to this use based on the model’s stated design and connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"eur-section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"eur-grid6\"\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eDesign\u003c\/h3\u003e\n\u003cp\u003eClosed-back over-ear headphones\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eFrequency Response\u003c\/h3\u003e\n\u003cp\u003e18 Hz to 20 kHz\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eImpedance\u003c\/h3\u003e\n\u003cp\u003e18 ohms\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eConnection\u003c\/h3\u003e\n\u003cp\u003eUSB-C\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eCable\u003c\/h3\u003e\n\u003cp\u003eDetachable single-sided cable\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eCall Control\u003c\/h3\u003e\n\u003cp\u003eInline remote and microphone\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"eur-section\"\u003e\u003ch3\u003eDesigned Around the Right Use Case\u003c\/h3\u003e\n\u003cp\u003eA straightforward wired listening setup with no charging or pairing required. The specification focuses on design, frequency response and impedance.\u003c\/p\u003e\n\u003ch3\u003eConnections and Everyday Ownership\u003c\/h3\u003e\n\u003cp\u003eConnection: USB-C. Cable: Detachable single-sided cable. These are the details that determine how the product works with the rest of a setup.\u003c\/p\u003e\n\u003ch3\u003eControl and Practical Detail\u003c\/h3\u003e\n\u003cp\u003eCall Control: Inline remote and microphone. This keeps the ownership experience grounded in the functions built into this exact model.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"eur-section\"\u003e\u003ch2\u003eHow It Compares\u003c\/h2\u003e\n\u003cp\u003eThis wired headphone keeps the signal path simple and does not depend on Bluetooth pairing or battery charging. Its acoustic design, impedance, connection and cable arrangement are the most useful comparison points.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"eur-section\"\u003e\u003ch2\u003eThe Verdict\u003c\/h2\u003e\n\u003cdiv class=\"eur-verdict\"\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eStrengths\u003c\/h3\u003e\n\u003cp\u003eDesign: Closed-back over-ear headphones; Frequency Response: 18 Hz to 20 kHz; Impedance: 18 ohms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eur-card\"\u003e\n\u003ch3\u003eConsiderations\u003c\/h3\u003e\n\u003cp\u003eThis is a wired product, so the source device needs the stated connector or a suitable compatible adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":54734322401621,"sku":"800126","price":79.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0924\/6284\/2197\/files\/ouQb2gy7.webp?v=1787570546","url":"https:\/\/kingandmoffattretail.com\/products\/sennheiser-hd-400u-usb-c-headphones-black-800126","provider":"King and Moffatt Euronics","version":"1.0","type":"link"}