{"product_id":"sennheiser-hd428-closed-circumaural-hi-fi-headphone-open-box","title":"Sennheiser HD428 Closed Circumaural Hi-Fi Headphone - Open Box","description":"\u003cp\u003e####This item is missing its original box, and is in very good condition!#####\u003c\/p\u003e\u003cp\u003e \u003cbr\u003e \u003c\/p\u003e\u003cp\u003eThese **Sennheister HD-428** stereo headphones are perfect for any music-loving audiophile. Their rubberized, outer shell features an innovative cross-hair design to improve durability, and their single-sided cable stays tangle-free and is easy to use and store. These Sennheiser HD-428 headphones also feature high-output, neodymium magnets that provide for powerful stereo sound reproduction. Plus, their around-the-ear configuration effectively blocks outside noise.  \u003c\/p\u003e\u003cp\u003eThese Sennheiser HD-428 headphones have been factory refurbished and are guaranteed to meet or exceed the performance of a brand new unit. A 90-day warranty is provided with this item, and all original accessories that come with a new unit are included.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cli\u003eOptimized for iPod, iPhone, MP3 and CD players\u003c\/li\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cli\u003eCable Length: 4.5' single-sided OFC cable\u003c\/li\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cli\u003eWarranty: 90-Day VMInnovations Warranty\u003c\/li\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/ul\u003e\u003cp\u003eVMInnovations is an Authorized Sennheiser Online Dealer\u003c\/p\u003e\u003cp\u003e@[video](QgbYOCkK6cQ)  \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFactory Refurbished **Sennheiser HD428** Noise Cancelling Stereo Headphones\u003c\/li\u003e\n\u003cli\u003eOptimized for iPod, iPhone, MP3 and CD players (iPhone and iPod are trademarks of Apple Inc., registered in the U.S. and other countries)\u003c\/li\u003e\n\u003cli\u003eClosed circumaural design blocks outside noise for pure audio enjoyment\u003c\/li\u003e\n\u003cli\u003e**Includes:**\u003c\/li\u003e\n\u003cli\u003eHeadphone Connector: 1\/8-Inch\u003c\/li\u003e\n\u003cli\u003eCable Length: 4-ft single-sided OFC cable\u003c\/li\u003e\n\u003cli\u003eTransducer principle : dynamic, closed\u003c\/li\u003e\n\u003cli\u003eEar coupling: circum-aural (around-the-ear)\u003c\/li\u003e\n\u003cli\u003eTHD: \u0026lt;0.1%\u003c\/li\u003e\n\u003cli\u003eImpedance: 32 Ohm\u003c\/li\u003e\n\u003cli\u003eHD428\u003c\/li\u003e\n\u003cli\u003eSound Pressure level (SPL): 110 dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 18\u003c\/li\u003e\n\u003cli\u003e**Specifications:**\u003c\/li\u003e\n\u003cli\u003eCompatible (listen only) with latest generation of tablets\u003c\/li\u003e\n\u003cli\u003eRubberized outer earcup coating enhances durability and feel\u003c\/li\u003e\n\u003cli\u003eSingle-sided cable for convenient handling\u003c\/li\u003e\n\u003cli\u003eBold crosshair design on earcups\u003c\/li\u003e\n\u003cli\u003e22000 Hz\u003c\/li\u003e\n\u003cli\u003eHigh-output neodymium magnets for stereo sound with powerful bass\u003c\/li\u003e\n\u003cli\u003e1 1\/4\" adapter plug\u003c\/li\u003e\n\u003cli\u003eCondition: Open Box\u003c\/li\u003e\n\u003cli\u003eWeight: 13.6 oz (shipping weight)\u003c\/li\u003e\n\u003cli\u003e@[Video](zqpz9yOu31s)\u003c\/li\u003e\n\u003cli\u003eWarranty: 90-Day VMInnovations Warranty\u003c\/li\u003e\n\u003cli\u003ePart Number: **HD428**\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":49676048826596,"sku":"71070","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/9081\/0596\/files\/27201_1.jpg?v=1787103256","url":"https:\/\/vminnovations.com\/products\/sennheiser-hd428-closed-circumaural-hi-fi-headphone-open-box","provider":"VMInnovations","version":"1.0","type":"link"}