[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"research-sidebar-rollups":3,"research-niche-us-electronics-kz-castor":144},[4,11,18,25,32,39,46,53,60,67,74,81,88,95,102,109,116,123,130,137],{"nodeId":5,"label":6,"slug":7,"href":8,"nichesTracked":9,"marketSizeTotal":10},"3760931","Health & Household","health-household","\u002Fresearch\u002Fus\u002Fhealth-household",15338,15205859393,{"nodeId":12,"label":13,"slug":14,"href":15,"nichesTracked":16,"marketSizeTotal":17},"11055981","Beauty & Personal Care","beauty-personal-care","\u002Fresearch\u002Fus\u002Fbeauty-personal-care",10978,8129370268,{"nodeId":19,"label":20,"slug":21,"href":22,"nichesTracked":23,"marketSizeTotal":24},"493964","Electronics","electronics","\u002Fresearch\u002Fus\u002Felectronics",8348,8093575873,{"nodeId":26,"label":27,"slug":28,"href":29,"nichesTracked":30,"marketSizeTotal":31},"1063498","Home & Kitchen","home-kitchen","\u002Fresearch\u002Fus\u002Fhome-kitchen",11250,6171847188,{"nodeId":33,"label":34,"slug":35,"href":36,"nichesTracked":37,"marketSizeTotal":38},"468240","Tools & Home Improvement","tools-home-improvement","\u002Fresearch\u002Fus\u002Ftools-home-improvement",9536,5679978000,{"nodeId":40,"label":41,"slug":42,"href":43,"nichesTracked":44,"marketSizeTotal":45},"3238155011","Patio, Lawn & Garden","patio-lawn-garden","\u002Fresearch\u002Fus\u002Fpatio-lawn-garden",8839,4979879539,{"nodeId":47,"label":48,"slug":49,"href":50,"nichesTracked":51,"marketSizeTotal":52},"7141124011","Clothing, Shoes & Jewelry","clothing-shoes-jewelry","\u002Fresearch\u002Fus\u002Fclothing-shoes-jewelry",16932,4054319330,{"nodeId":54,"label":55,"slug":56,"href":57,"nichesTracked":58,"marketSizeTotal":59},"3375301","Sports & Outdoors","sports-outdoors","\u002Fresearch\u002Fus\u002Fsports-outdoors",8101,3930668084,{"nodeId":61,"label":62,"slug":63,"href":64,"nichesTracked":65,"marketSizeTotal":66},"2619534011","Pet Supplies","pet-supplies","\u002Fresearch\u002Fus\u002Fpet-supplies",3979,3202071599,{"nodeId":68,"label":69,"slug":70,"href":71,"nichesTracked":72,"marketSizeTotal":73},"15690151","Automotive","automotive","\u002Fresearch\u002Fus\u002Fautomotive",7287,2959139927,{"nodeId":75,"label":76,"slug":77,"href":78,"nichesTracked":79,"marketSizeTotal":80},"165797011","Baby Products","baby-products","\u002Fresearch\u002Fus\u002Fbaby-products",2473,1858793879,{"nodeId":82,"label":83,"slug":84,"href":85,"nichesTracked":86,"marketSizeTotal":87},"2335753011","Cell Phones & Accessories","cell-phones-accessories","\u002Fresearch\u002Fus\u002Fcell-phones-accessories",2222,1674713279,{"nodeId":89,"label":90,"slug":91,"href":92,"nichesTracked":93,"marketSizeTotal":94},"165795011","Toys & Games","toys-games","\u002Fresearch\u002Fus\u002Ftoys-games",3143,1662205212,{"nodeId":96,"label":97,"slug":98,"href":99,"nichesTracked":100,"marketSizeTotal":101},"2617942011","Arts, Crafts & Sewing","arts-crafts-sewing","\u002Fresearch\u002Fus\u002Farts-crafts-sewing",4656,1471576936,{"nodeId":103,"label":104,"slug":105,"href":106,"nichesTracked":107,"marketSizeTotal":108},"2619526011","Appliances","appliances","\u002Fresearch\u002Fus\u002Fappliances",845,527166679,{"nodeId":110,"label":111,"slug":112,"href":113,"nichesTracked":114,"marketSizeTotal":115},"11965861","Musical Instruments","musical-instruments","\u002Fresearch\u002Fus\u002Fmusical-instruments",437,265480238,{"nodeId":117,"label":118,"slug":119,"href":120,"nichesTracked":121,"marketSizeTotal":122},"16310161","Industrial & Scientific","industrial-scientific","\u002Fresearch\u002Fus\u002Findustrial-scientific",262,260043081,{"nodeId":124,"label":125,"slug":126,"href":127,"nichesTracked":128,"marketSizeTotal":129},"1084128","Office Products","office-products","\u002Fresearch\u002Fus\u002Foffice-products",426,134456572,{"nodeId":131,"label":132,"slug":133,"href":134,"nichesTracked":135,"marketSizeTotal":136},"10304191","Other","other","\u002Fresearch\u002Fus\u002Fother",8,1511091,{"nodeId":138,"label":139,"slug":140,"href":141,"nichesTracked":142,"marketSizeTotal":143},"18981046011","Amazon Luxury","amazon-luxury","\u002Fresearch\u002Fus\u002Famazon-luxury",2,78675,{"amazonNicheId":145,"marketplaceFlag":146,"country":147,"category":150,"niche":151,"verdict":183,"baselines":219,"demand":224,"seasonality":300,"brandShare":301,"products":310,"feedback":355,"searchTerms":492,"related":511,"lastUpdated":172},"d04809f3-7405-4ee6-b69a-876318955026","us",{"flag":146,"name":148,"currency":149},"United States","USD",{"nodeId":19,"label":20,"slug":21,"href":22},{"marketSize":152,"searchVolume":153,"growth360":154,"growth90":155,"searchConversion":156,"top5ClickShare":157,"top5BrandShare":157,"avgRating":158,"avgReviewCount":159,"avgPrice":160,"priceMin":161,"priceMax":162,"productCount":163,"unitsSoldMax":164,"sponsoredPct":165,"returnRate":166,"successfulLaunches360":167,"newProducts360":167,"amazonNicheId":145,"title":168,"slug":169,"href":170,"leafCategoryName":171,"scrapedAt":172,"brandCount":142,"brandCountYearAgo":142,"sellerCount":173,"signals":174,"avgBsr":175,"pageQuality":167,"unitsSoldMin":176,"unitsSoldAvgMin":177,"unitsSoldAvgMax":178,"revenueMin":179,"revenueMax":180,"avgBrandAgeMonths":181,"avgSellerAgeDays":182,"top20ClickShare":157,"top20BrandShare":157,"primePct":157,"oosRate":167},56834,110149,1.7865,0.087,0.021,1,4.44,668,24.57,23.39,25.46,5,2000,0.8,0.0312,0,"kz castor","kz-castor","\u002Fresearch\u002Fus\u002Felectronics\u002Fkz-castor","Headphones & Earbuds","2026-07-22T07:33:20.735761+00:00",4,[],304,1500,100,250,36855,49140,37,200,{"score":184,"verdict":185,"components":186},33,"skip",[187,192,195,199,201,203,206,211,214,217],{"key":188,"score":189,"weight":190,"raw":191},"marketSize",14,0.15,56833.58,{"key":193,"score":194,"weight":190,"raw":155},"growth",36,{"key":196,"score":197,"weight":198,"raw":156},"conversion",26,0.1,{"key":200,"score":167,"weight":190,"raw":157},"competition",{"key":202,"score":167,"weight":198,"raw":157},"brandShare",{"key":204,"score":205,"weight":198,"raw":158},"qualityGap",52,{"key":207,"score":208,"weight":209,"raw":210},"reviewMoat",71,0.05,668.4,{"key":212,"score":213,"weight":198,"raw":166},"returns",49,{"key":215,"score":216,"weight":209,"raw":160},"avgPrice",95,{"key":218,"score":216,"weight":209,"raw":157},"priceRange",{"avgRating":220,"medianPrice":221,"medianReturnRate":222,"nichesTracked":223},4.42,24.38,0.0215,115062,{"points":225,"droppedPartialWeek":299},[226,229,232,235,238,241,244,247,250,253,256,259,261,264,267,269,272,275,278,281,284,287,290,293,296],{"week":227,"volume":228},"2026-02-01",2462,{"week":230,"volume":231},"2026-02-08",2476,{"week":233,"volume":234},"2026-02-15",2326,{"week":236,"volume":237},"2026-02-22",2181,{"week":239,"volume":240},"2026-03-01",2344,{"week":242,"volume":243},"2026-03-08",2180,{"week":245,"volume":246},"2026-03-15",2128,{"week":248,"volume":249},"2026-03-22",2065,{"week":251,"volume":252},"2026-03-29",2261,{"week":254,"volume":255},"2026-04-05",2411,{"week":257,"volume":258},"2026-04-12",2235,{"week":260,"volume":246},"2026-04-19",{"week":262,"volume":263},"2026-04-26",2199,{"week":265,"volume":266},"2026-05-03",1874,{"week":268,"volume":258},"2026-05-10",{"week":270,"volume":271},"2026-05-17",2618,{"week":273,"volume":274},"2026-05-24",2213,{"week":276,"volume":277},"2026-05-31",2237,{"week":279,"volume":280},"2026-06-07",2036,{"week":282,"volume":283},"2026-06-14",2097,{"week":285,"volume":286},"2026-06-21",2009,{"week":288,"volume":289},"2026-06-28",2551,{"week":291,"volume":292},"2026-07-05",2034,{"week":294,"volume":295},"2026-07-12",1946,{"week":297,"volume":298},"2026-07-19",2141,false,null,{"top":302,"otherBrandCount":167,"otherClickShare":309},[303,306],{"brand":304,"clickShare":305},"CCA",0.7727999999999999,{"brand":307,"clickShare":308},"keephifi",0.2271,0.00010000000000010001,[311,321,331,339,348],{"asin":312,"title":313,"brand":304,"imageUrl":314,"price":162,"rating":315,"reviews":316,"clickShare90":317,"clickShare360":318,"launchDate":319,"amazonUrl":320},"B0DLMVTSZ8","CCA KZ Castor Pro Tunable in Ear Monitor HiFi Improved Bass in Ear Headphone Dual-Dynamic Driver Gaming Earbuds IEM Earphones with 2PIN-C Detachable CableBlack with Mic","https:\u002F\u002Fm.media-amazon.com\u002Fimages\u002FI\u002F416Hg5UA6RL.jpg",4.5,257,0.6009,0.4212,"2024-11-01","https:\u002F\u002Fwww.amazon.com\u002Fdp\u002FB0DLMVTSZ8",{"asin":322,"title":323,"brand":307,"imageUrl":324,"price":161,"rating":325,"reviews":326,"clickShare90":327,"clickShare360":328,"launchDate":329,"amazonUrl":330},"B0CHY291YZ","in Ear Monitor Headphones KZ Castor Improved Bass HiFi Earphone Sound Tunable Noise Isolating IEMs Dual-Dynamic Driver Wired Earbuds with Detachable Cable for Singers Musicians","https:\u002F\u002Fm.media-amazon.com\u002Fimages\u002FI\u002F41Vj7Dz3UxL.jpg",4.4,1656,0.1412,0.2835,"2023-09-13","https:\u002F\u002Fwww.amazon.com\u002Fdp\u002FB0CHY291YZ",{"asin":332,"title":333,"brand":304,"imageUrl":314,"price":334,"rating":325,"reviews":335,"clickShare90":336,"clickShare360":337,"launchDate":319,"amazonUrl":338},"B0DLMPWSLN","KZ Castor Pro Tunable in Ear Monitor HiFi Improved Bass in Ear Headphone Dual-Dynamic Driver Gaming Earbuds IEM Earphones with 2PIN-C Detachable Cable",25.42,261,0.1351,0.2023,"https:\u002F\u002Fwww.amazon.com\u002Fdp\u002FB0DLMPWSLN",{"asin":340,"title":341,"brand":307,"imageUrl":342,"price":343,"rating":325,"reviews":344,"clickShare90":345,"clickShare360":346,"launchDate":329,"amazonUrl":347},"B0CHXZVVMG","KZ Castor in Ear Monitor Headphones with Mic HiFi Improved Bass Earphone Sound Tunable Noise Isolating IEMs Dual-Dynamic Driver Wired Earbuds 2PIN-C Detachable Cable for Singers Musicians","https:\u002F\u002Fm.media-amazon.com\u002Fimages\u002FI\u002F41B3fIzZ92L.jpg",24.77,911,0.0859,0.0693,"https:\u002F\u002Fwww.amazon.com\u002Fdp\u002FB0CHXZVVMG",{"asin":349,"title":333,"brand":304,"imageUrl":350,"price":351,"rating":315,"reviews":316,"clickShare90":352,"clickShare360":353,"launchDate":319,"amazonUrl":354},"B0DLMKKD2Y","https:\u002F\u002Fm.media-amazon.com\u002Fimages\u002FI\u002F413jLQIEcuL.jpg",23.81,0.0368,0.0238,"https:\u002F\u002Fwww.amazon.com\u002Fdp\u002FB0DLMKKD2Y",{"love":356,"hate":417,"returnReasons":471},[357,364,371,378,385,392,398,403,407,411],{"topic":358,"percentOfMentions":359,"verbatims":360},"Audio Quality",0.266,[361,362,363],"Awesome sound","clear sound","good headphones",{"topic":365,"percentOfMentions":366,"verbatims":367},"Value For Money",0.1852,[368,369,370],"Great value for money","Great for the price","Awesome, Worth the money",{"topic":372,"percentOfMentions":373,"verbatims":374},"Bass",0.1625,[375,376,377],"The best bass I've ever heard","The sound is clear with strong bass","They say improved bass",{"topic":379,"percentOfMentions":380,"verbatims":381},"Quality-Overall",0.1574,[382,383,384],"Overall, these are a great pair of IEMs with impressive sound, good comfort, and a lot of value","Very well made","Great quality",{"topic":386,"percentOfMentions":387,"verbatims":388},"Size-Overall",0.0438,[389,390,391],"The fit is also comfortable","They fit comfortably in the ear","Great fit",{"topic":393,"percentOfMentions":394,"verbatims":395},"Ease Of Use",0.016,[389,396,397],"the braided cord was removable making it easy to use","Its not overly complicated",{"topic":399,"percentOfMentions":400,"verbatims":401},"Advertised Vs Actual Product",0.0152,[402],"met my expectations",{"topic":404,"percentOfMentions":400,"verbatims":405},"Microphone",[406],"that's just me in line mic worked really well better then expected only problem I have is the stock earbuds that come with it is not the best it irritated my ear canal quite a bit so buy aftermarket ear tips that's the only reason it's getting a 4 star would be a 5 if the stock tips didn't hurt after 30 min",{"topic":408,"percentOfMentions":400,"verbatims":409},"Adjustability\u002FRotatability\u002FReclining",[410],"Great With Adjustments",{"topic":412,"percentOfMentions":413,"verbatims":414},"Durability",0.0126,[415,416],"They seem fairly durable","the cable seems durable enough for regular use",[418,424,429,435,442,447,451,457,461,466],{"topic":379,"percentOfMentions":419,"verbatims":420},0.15560000000000002,[421,422,423],"Bad quality","Possibly bad QC","bad build quality",{"topic":358,"percentOfMentions":419,"verbatims":425},[426,427,428],"my left sound went out","I am very careful with my audio equipment so this was a major shock and major disappointment","Audio exelente",{"topic":412,"percentOfMentions":430,"verbatims":431},0.1278,[432,433,434],"is that they broke after 3 months","Left bud gave out after 3-7 days of normal use","this doesnt stay more than 3 months",{"topic":436,"percentOfMentions":437,"verbatims":438},"Audio Volume",0.07780000000000001,[439,440,441],"the right IEM slowly lost the ability to maintain volume","Distorted at high volume","having low volume",{"topic":443,"percentOfMentions":444,"verbatims":445},"Noise Level",0.0667,[446],"the cable is already starting to go bad. scratchy noise when youre moving around",{"topic":448,"percentOfMentions":444,"verbatims":449},"Defective Material\u002FParts",[450],"Product came defective right cable doesnt work",{"topic":452,"percentOfMentions":453,"verbatims":454},"Functionality-Overall",0.0556,[455,456],"Not working","One of my earpiece went off and having low volume and I tried all means to fix it.",{"topic":372,"percentOfMentions":209,"verbatims":458},[459,460],"To the ones that say it lacks bass","bass response is crazy",{"topic":462,"percentOfMentions":463,"verbatims":464},"Speaker",0.0333,[465],"One of the ear monitors did not work",{"topic":467,"percentOfMentions":468,"verbatims":469},"Connectivity-Overall",0.0167,[470],"now the connection is loose",[472,474,476,478,480,482,485,487,489,491],{"reason":358,"pct":473},0.2772,{"reason":386,"pct":475},0.125,{"reason":372,"pct":477},0.1011,{"reason":452,"pct":479},0.075,{"reason":404,"pct":481},0.045599999999999995,{"reason":483,"pct":484},"Comfort-Overall",0.0378,{"reason":448,"pct":486},0.0339,{"reason":399,"pct":488},0.030600000000000002,{"reason":443,"pct":490},0.03,{"reason":467,"pct":490},[493,498,502,506],{"term":494,"volume":495,"growthQoq":496,"conversionRate":497},"kz castor pro",52459,0.2716,0.0227,{"term":168,"volume":499,"growthQoq":500,"conversionRate":501},49843,-0.1149,0.0125,{"term":503,"volume":504,"growthQoq":505,"conversionRate":394},"kz castor bass",5248,0.2701,{"term":507,"volume":508,"growthQoq":509,"conversionRate":510},"kz castor pro bass",2599,-0.0042,0.023,[512,519,525,530,535,540],{"title":513,"href":514,"score":515,"verdict":516,"marketSize":517,"growth90":518},"power strip long cord","\u002Fresearch\u002Fus\u002Felectronics\u002Fpower-strip-long-cord",69,"watch",509955.2,0.5018,{"title":520,"href":521,"score":522,"verdict":516,"marketSize":523,"growth90":524},"airpods pro charging case","\u002Fresearch\u002Fus\u002Felectronics\u002Fairpods-pro-charging-case",70,798323.97,-0.0529,{"title":526,"href":527,"score":522,"verdict":516,"marketSize":528,"growth90":529},"starlink mini tripod","\u002Fresearch\u002Fus\u002Felectronics\u002Fstarlink-mini-tripod",478184.44,0.623,{"title":531,"href":532,"score":522,"verdict":516,"marketSize":533,"growth90":534},"luggage tracker","\u002Fresearch\u002Fus\u002Felectronics\u002Fluggage-tracker",715834.67,0.2949,{"title":536,"href":537,"score":522,"verdict":516,"marketSize":538,"growth90":539},"canopy fan","\u002Fresearch\u002Fus\u002Felectronics\u002Fcanopy-fan",298048.6,1.3544,{"title":541,"href":542,"score":522,"verdict":516,"marketSize":543,"growth90":544},"spypoint battery pack","\u002Fresearch\u002Fus\u002Felectronics\u002Fspypoint-battery-pack",379019.7,0.6744]