intros：{"brand_intro":"小米成立于2010年，是中国领先的智能硬件和互联网公司，以\"性价比\"和\"生态链\"著称。小米音频产品线覆盖广泛，Buds系列是其真无线耳机主力。小米坚持\"感动人心、价格厚道\"的品控理念，产品在保证性能的同时定价亲民。创始人雷军是知名企业家和天使投资人，他倡导\"用互联网思维做硬件\"，推动小米成为全球最大的消费级IoT平台之一。","product_intro":"Buds 4 Pro是小米2022年发布的旗舰真无线降噪耳机，定位高性价比旗舰。核心卖点：三核降噪芯片，降噪深度达48dB；同轴双单元，支持Hi-Res Audio Wireless认证；支持空间音频和头部追踪。适用于小米生态用户、预算有限的音质爱好者。相比华为FreeBuds Pro 3，其降噪参数更高，但实际体验和做工稍逊。","key_specs":{"驱动单元":"同轴双单元（11mm动圈+6mm微平板），声场开阔、细节丰富","降噪芯片":"三核降噪芯片，降噪深度48dB，支持自适应降噪","续航时间":"单次9小时（降噪关），配合充电盒38小时","防水等级":"IP54，防尘防溅，适合日常使用","连接协议":"蓝牙5.3，支持LHDC 5.0/AAC/SBC","适配人群":"小米手机用户、追求高性价比的消费者"}}
alt_products：[{"product_name":"小米（MI）Buds 4 Pro 真无线降噪耳机","brand":"小米","model":"M2103E1","price":999}]
kol_quotes：[]
scoring_breakdown：[{"source":"word_of_mouth","score":77.39999999999999,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为其降噪效果\"出乎意料的好\"，音质在同价位中表现突出，尤其低频有力。空间音频效果自然，头部追踪流畅。缺点：做工质感一般，塑料感较强；佩戴舒适度中等，长时间使用耳道有压迫感；非小米设备连接稳定性略差。专业评测如《爱范儿》给出4.2分，称其\"千元级降噪耳机的新卷王\"。","source_count":4}},{"source":"objective","score":86,"weight":0.5,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.3,"review_count":65000,"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":65000,"source":"product_reviews_aggregate"}}]