scoring_breakdown:[{"source":"word_of_mouth","score":81.5,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"综合50万条评价,用户最满意的是\"性价比无敌\",很多学生党表示\"百元价位降噪效果超出预期\"。降噪在宿舍和图书馆场景够用,但在地铁等嘈杂环境效果有限。音质方面,低频量感足,适合听流行和摇滚,但中高频解析力一般,人声稍闷。佩戴舒适度好评,轻量化设计适合长时间佩戴。缺点:塑料感较强、降噪开启后有轻微底噪、通话质量一般。专业评测(如知乎)给出降噪7.0分,音质6.5分。小红书用户称其为\"学生党福音\",什么值得买用户认为\"百元降噪天花板\"。","source_count":5}},{"source":"objective","score":86,"weight":0.5,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.3,"review_count":500000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":86,"weight":0.15,"confidence":1,"details":{"rating_avg":4.3,"review_count":500000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["数码博主@爱否科技:W820NB让降噪耳机不再是奢侈品,299元买不了吃亏。","学生博主@小鹿斑比:宿舍必备,室友打游戏再吵也不怕,学习效率翻倍。"]}}]