{"product_id":"sennheiser-hdb-630","title":"Sennheiser HDB 630 Closed-Back Wireless Headphones","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe Sennheiser HDB 630 is Sennheiser's dedicated audiophile wireless headphone, built around a neutral, reference-grade tuning inspired by the HD 560 series. Where the Momentum line is tuned for consumer listening enjoyment, the HDB 630 is engineered for accuracy, detail retrieval, and a wide natural soundstage in a closed-back design suited to daily use and travel.\u003c\/p\u003e\n\u003cp\u003eAt the center is Sennheiser's in-house 42mm dynamic transducer, manufactured at their Tullamore production facility in Ireland. The included BTD 700 USB-C dongle instantly upgrades approximately 80% of smartphones to aptX Adaptive hi-res wireless streaming. For maximum purity, the USB-C port supports direct wired listening at up to 24-bit\/96kHz. Note: Hi-res mode is not enabled by default and must be activated in the Smart Control Plus app. A 3.5mm analog input is also available.\u003c\/p\u003e\n\u003cp\u003eThe Smart Control Plus app delivers a five-band parametric EQ with adjustable frequency, bandwidth (Q), and filter types for surgical sound shaping. Crossfeed recreates a natural speaker-like stereo image for hard-panned recordings. Triple-tapping the BTD 700 activates a low-latency mode (~30ms) suited to gaming and video use. EQ presets can be shared between users within the app.\u003c\/p\u003e\n\u003cp\u003eAll in-stock orders placed before 5pm EST Monday through Friday ship the same day. Free ground shipping on all orders over $9.99 within the 48 contiguous United States.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n  \u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the BTD 700 dongle and do I need it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The BTD 700 is a USB-C Bluetooth transmitter dongle included in the box that enables aptX HD and aptX Adaptive hi-res wireless streaming. It must be paired with the headphones before first use. The HDB 630 can pair via standard Bluetooth without it, but the BTD 700 is required for the highest wireless audio quality and the low-latency gaming mode.\"}},{\"@type\":\"Question\",\"name\":\"How do I enable hi-res 24-bit\/96kHz mode?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Hi-res mode is not active by default. Once the BTD 700 dongle is connected and paired, open the Sennheiser Smart Control Plus app and activate hi-res playback in the settings. This is disabled by default to maximize battery runtime.\"}},{\"@type\":\"Question\",\"name\":\"How does the HDB 630 differ from the Sennheiser Momentum 4 Wireless?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Momentum 4 Wireless uses a consumer-tuned sound signature with Bluetooth 5.4 and aptX Lossless. The HDB 630 uses a neutral, reference-grade tuning inspired by the HD 560 series with parametric EQ and Crossfeed. Both share the same physical chassis. The BTD 700 dongle brings the HDB 630 to equivalent hi-res wireless performance.\"}},{\"@type\":\"Question\",\"name\":\"Can the HDB 630 be used wired?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The USB-C port supports lossless digital audio up to 24-bit\/96kHz and the 3.5mm analog input provides a passive wired connection. Both cables are included.\"}},{\"@type\":\"Question\",\"name\":\"What is the low-latency mode and how does it work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Triple-tapping the BTD 700 dongle activates approximately 30ms latency mode for gaming and video use. Note that using the headphone microphone during Bluetooth connection switches the device to Hands Free mode, which significantly reduces audio bandwidth.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudiophile Tuning\u003c\/strong\u003e - Neutral, reference-grade sound inspired by the HD 560 series with lifelike mids, precise detail, and a wide natural soundstage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42mm In-House Transducer\u003c\/strong\u003e - Manufactured at Sennheiser's Tullamore, Ireland production facility with transparent acoustic mesh and optimized back-volume architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTD 700 Dongle Included\u003c\/strong\u003e - Enables aptX HD and aptX Adaptive hi-res wireless streaming; must be paired before first use; upgrades ~80% of USB-C smartphones to hi-res capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Wired Listening\u003c\/strong\u003e - USB-C input supports up to 24-bit\/96kHz lossless playback; hi-res must be activated in the Smart Control Plus app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5mm Analog Input\u003c\/strong\u003e - Fully functional as a passive wired headphone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParametric EQ\u003c\/strong\u003e - Five-band PEQ with ±6dB range, adjustable frequency, bandwidth (Q), and filter type via Smart Control Plus app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrossfeed\u003c\/strong\u003e - Recreates speaker-like stereo imaging for natural, fatigue-free listening on hard-panned recordings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEQ Preset Sharing\u003c\/strong\u003e - Share and receive custom presets with other HDB 630 users via the app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Latency Mode\u003c\/strong\u003e - Triple-tap the BTD 700 dongle to activate ~30ms latency for gaming and video\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdaptive ANC\u003c\/strong\u003e - Automatically adjusts noise cancellation to the listening environment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparency Mode\u003c\/strong\u003e - Restores ambient awareness at a touch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-Hour Battery Life\u003c\/strong\u003e - Class-leading runtime for daily and travel use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Charge\u003c\/strong\u003e - 10 minutes of charging provides 7 hours of playback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoldable, Travel-Ready Design\u003c\/strong\u003e - Full cup swivel, Japanese leatherette headband, carry case included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecs \u003c\/h6\u003e\n\u003cul\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eBrand: Sennheiser\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eModel: HDB 630\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eDriver: 42mm dynamic, in-house (Tullamore, Ireland)\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eBluetooth: 5.2\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eCodecs: SBC, AAC, aptX, aptX HD, aptX Adaptive\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eWired input: USB-C (up to 24-bit\/96kHz), 3.5mm analog\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eBattery life: 60 hours\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eQuick charge: 10 minutes = 7 hours playback\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eANC: Adaptive\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eApp: Smart Control Plus\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eDesign: Closed-back, over-ear, foldable\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eColor: Black\u003c\/li\u003e\n\u003cli data-start=\"2152\" data-end=\"2196\"\u003eIncludes: BTD 700 USB-C dongle, carry case, USB-C cable, 3.5mm cable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":48660217233636,"sku":"4315","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0186\/0219\/7043\/files\/4315_1.jpg?v=1775493159","url":"https:\/\/adcohearing.com\/products\/sennheiser-hdb-630","provider":"ADCO Hearing Products","version":"1.0","type":"link"}