{"product_id":"hd-450bt-refurbished","title":"HD 450BT Refurbished","description":"Step up to great wireless sound with the HD 450BT from Sennheiser. Whether relaxing at home or on the go, they offer an exceptional combination of versatility and superior sound. \u003cbr\u003e\n\u003cbr\u003e\nCreated by audio specialist Sennheiser to deliver a superior sound experience with deep dynamic bass, they feature active noise cancellation to ensure enjoyment without distraction.  Sound quality is assured by the latest wireless technology including Bluetooth 5.0 and AAC, aptX™ codec support with aptX™ Low Latency for perfectly synchronized audio when watching videos. The Sennheiser Smart Control App makes it easy to customize the sound via the equalizer or engage podcast mode for improved intelligibility of speech content. \u003cbr\u003e\n\u003cbr\u003e\nA great companion for travel, the HD 450BT has a superb 30-hour battery life with fast USB-C charging, a Voice Assistant button for Siri and Google Assistant interaction, and a robust folding design for take-anywhere durability.   \u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response (Microphone)\u003c\/td\u003e\n\u003ctd\u003e80 Hz to 6,000 Hz (-3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer principle (Microphone)\u003c\/td\u003e\n\u003ctd\u003eMEMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth Version\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Profiles\u003c\/td\u003e\n\u003ctd\u003eHSP, HFP, AVRCP, A2DP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e18 Hz to 22,000 Hz (-10 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound pressure level (SPL)\u003c\/td\u003e\n\u003ctd\u003e108 dB (1 kHz\/0 dBFS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD, total harmonic distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.3 % (1 kHz, 100 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEar coupling\u003c\/td\u003e\n\u003ctd\u003eAround Ear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer principle\u003c\/td\u003e\n\u003ctd\u003eDynamic, closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 238 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging time\u003c\/td\u003e\n\u003ctd\u003eApprox. 2 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePick-up pattern\u003c\/td\u003e\n\u003ctd\u003eDual Beamforming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating time\u003c\/td\u003e\n\u003ctd\u003e30 hours music playback via Bluetooth with ANC activated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Specification\u003c\/td\u003e\n\u003ctd\u003eBuilt-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 600 mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission frequency\u003c\/td\u003e\n\u003ctd\u003e2,402 MHz to 2,480 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Current\u003c\/td\u003e\n\u003ctd\u003e500 mA max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio codec\u003c\/td\u003e\n\u003ctd\u003eSBC, AAC, AptX™, AptX™ Low Latency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging voltage\u003c\/td\u003e\n\u003ctd\u003e5 V, DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulation scheme\u003c\/td\u003e\n\u003ctd\u003eGFSK, π\/4 DQPSK, 8DPSK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp support\u003c\/td\u003e\n\u003ctd\u003eEQ and updates via Sennheiser Smart Control\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/table\u003e ","brand":"Sennheiser-EMEA","offers":[{"title":"BLACK","offer_id":39581070524610,"sku":"B508386","price":65.0,"currency_code":"EUR","in_stock":true},{"title":"WHITE","offer_id":42605911867586,"sku":"B508387","price":65.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/9636\/8578\/products\/x1_desktop_HD_450BT_White_Sennheiser_01_10b7c073-c5a5-4d75-b937-5a12bb60418b.jpg?v=1773402565","url":"https:\/\/eu.sennheiser-hearing.com\/en-pt\/products\/hd-450bt-refurbished","provider":"Sonova Consumer Hearing GmbH","version":"1.0","type":"link"}