{"indrexa_id":"2ee711af-3a36-578b-be36-70ebd599de9a","category_id":"headphones","product_title":"Koss 154336 R-80 Over Ear Headphones, Black","brand":"Koss","upc":"012304059103 801038389125 055555563166 956261760408 887506662761 100177366845 021299131978 115971235334 777786358266 168141623134 601000790023 163120595587 141291058155 041113747116 070010044110 041114027521 031111558128 041114901531 031111134223 962327358625","asin":"B00005N9D2","semantic_description":"The Koss R80 are closed-back, over-ear wired headphones with 60-ohm impedance, featuring oxygen-free copper voice coils and leatherette ear cushions designed to form a passive noise-isolating seal around the ears. They connect via an 8-foot coiled single-entry cord with a 3.5mm plug and included 6.3mm adapter, making them suited for home listening, studio monitoring, and extended desktop use. Reviewers highlight strong sound clarity and comfort, though durability concerns — including reports of earpieces breaking — and inconsistent fit for smaller heads are notable limitations.","best_for_summary":"Best for home listeners or casual studio users who want full-size, wired over-ear headphones with passive noise isolation and a long cord for stationary use.","not_ideal_for":["Users needing portability or wireless freedom","People with smaller heads who may find the fit too large","Those requiring long-term durability for heavy daily use"],"use_case_tags":["home","studio","office","audiophile","budget-friendly"],"buyer_profile_tags":["casual-listener","budget-conscious","music-producer"],"manufacturer_description":"Professional quality Koss R80 full-size noise isolating headphones provide undeniably great sound outdone only by the comfort they offer. Listeners laud the outstanding form and function of the R80 full size headphones, designed for frequent use over extended periods.","feature_bullets":["8 foot, single-entry coiled cord with 3.5 mm (1/8-inch) plug","Oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound","Closed, leatherette ear cushions form comfortable seal around ears, enhancing bass frequencies and decreasing ambient noise","Dynamic element construction delivers accurate acoustic sound reproduction with a wide frequency response","Dynamic Element Construction Delivers Accurate Acoustic Sound Reproduction with a Wide Frequency Response","Oxygen-free Copper Voice Coils Improve Signal Transmission and Conduction for Cleaner, Clearer Sound","Closed, Leatherette Ear Cushions Form Comfortable Seal Around Ears, Enhancing Bass Frequencies and Decreasing Ambient Noise","Adjustable Headband Adapts to Any Head Size and Shape for Added Comfort","8 Foot, Single-entry Coiled Cord with 3.5 Mm (1/8-inch) Plug and 6.3 Mm (1/4-inch) Adapter","Covered under the Koss Stereophones Limited Lifetime Warranty"],"spec_table":[{"field":"Brand","value":"Koss"},{"field":"Color","value":"Black"},{"field":"Ear Placement","value":"Over Ear"},{"field":"Form Factor","value":"Over Ear"},{"field":"Impedance","value":"60 Ohms"}],"bought_in_past_month":null,"variants":null,"shipping_amount":"FREE","manufacturer":"Koss","climate_pledge_friendly":false,"category_specs":{"is_foldable":false,"is_wireless":false,"is_open_back":false,"impedance_ohms":60,"has_wired_option":true,"has_transparency_mode":false,"has_multipoint_connection":false,"has_active_noise_cancellation":false},"review_intelligence":{"total_reviews":359,"average_rating":4.1,"rating_distribution":{"1_star":"8%","2_star":"6%","3_star":"12%","4_star":"11%","5_star":"63%"},"top_positive_themes":["Sound quality (113)","Build quality (86)","Comfort (62)","Value for money (59)"],"top_negative_themes":[],"top_mixed_themes":["Fit (57)","Cord (32)","Noise cancellation (27)","Durability (26)"],"review_summary":"Customers find these headphones have excellent sound quality, with one noting improved clarity, and appreciate their build quality, comfort with soft ear cups, and value for money. The fit receives mixed feedback - while some say they fit nicely, others find them too large for their head. The cord is coiled and long, though one customer mentions it doesn't get entangled with their hand. Noise cancellation is effective at muting peripheral noise but doesn't block outside sounds well. Durability is also mixed, with reports of earpieces breaking off and the right side earphone snapping off.","reliability_score":"mixed"},"best_offer":{"retailer":"amazon","retailer_id":"B00005N9D2","price_usd":43.18,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/koss-154336-r-80-over-ear-2ee711af/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-07-18T08:45:55.660074+00:00"},"all_offers":[{"retailer":"amazon","retailer_id":"B00005N9D2","price_usd":43.18,"original_price_usd":null,"affiliate_url":"https://www.indrexa.com/go/koss-154336-r-80-over-ear-2ee711af/amazon","in_stock":true,"shipping":{"free_shipping_available":null,"free_shipping_note":null,"min_order_for_free_shipping":null},"last_updated":"2026-07-18T08:45:55.660074+00:00"}],"_llm_hints":{"best_offer_logic":"lowest price among in-stock offers","out_of_stock_offers_included":true,"use_affiliate_url":"always use affiliate_url field, never construct retailer URLs manually","shipping_note":"shipping costs are estimates only — final cost depends on user location and membership status","null_fields":"null spec or review fields mean data was unavailable from source — do not infer values","manufacturer_description":"brand's own product description — official copy from Amazon listing","feature_bullets":"array of manufacturer's bullet-point features from Amazon listing","spec_table":"raw structured spec table from Amazon — category-specific technical specs","bought_in_past_month":"Amazon demand signal — number of units sold in past 30 days","variants":"array of ASINs for color/size variants of this product","shipping_amount":"shipping cost signal — FREE indicates free shipping available","climate_pledge_friendly":"Amazon Climate Pledge Friendly badge — sustainability certification","data_freshness":"checked_at timestamp from most recent price record","best_offer_null_means":"all known offers are currently out of stock — check all_offers for availability"},"json_ld":{"@context":"https://schema.org","@type":"Product","name":"Koss 154336 R-80 Over Ear Headphones, Black","brand":{"@type":"Brand","name":"Koss"},"description":"The Koss R80 are closed-back, over-ear wired headphones with 60-ohm impedance, featuring oxygen-free copper voice coils and leatherette ear cushions designed to form a passive noise-isolating seal around the ears. They connect via an 8-foot coiled single-entry cord with a 3.5mm plug and included 6.3mm adapter, making them suited for home listening, studio monitoring, and extended desktop use. Reviewers highlight strong sound clarity and comfort, though durability concerns — including reports of earpieces breaking — and inconsistent fit for smaller heads are notable limitations.","sku":"2ee711af-3a36-578b-be36-70ebd599de9a","identifier":[{"@type":"PropertyValue","name":"asin","value":"B00005N9D2"},{"@type":"PropertyValue","name":"indrexa_id","value":"2ee711af-3a36-578b-be36-70ebd599de9a"}],"offers":[{"@type":"Offer","url":"https://www.indrexa.com/go/koss-154336-r-80-over-ear-2ee711af/amazon","priceCurrency":"USD","price":43.18,"availability":"https://schema.org/InStock","seller":{"@type":"Organization","name":"Amazon"}}],"additionalProperty":[],"gtin":"012304059103 801038389125 055555563166 956261760408 887506662761 100177366845 021299131978 115971235334 777786358266 168141623134 601000790023 163120595587 141291058155 041113747116 070010044110 041114027521 031111558128 041114901531 031111134223 962327358625","aggregateRating":{"@type":"AggregateRating","ratingValue":4.1,"reviewCount":359}}}