{"niche":"哪款降噪耳机采用了最出色的降噪技术？","description":"Which noise cancelling headphones have the best noise cancellation technology?","products":[{"brand":"Bose","model":"Bose QuietComfort Ultra Headphones (2nd Gen) 890101-0100","price_gbp":287.42,"origin_country":null,"specs":{"battery_life":"30"},"confidence_score":null,"sources":[{"label":"Bose","url":"https://www.bose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.html","currency":"USD","source_country":"US","price":379.99,"price_gbp":288.17,"scraped_at":"2026-06-26T13:51:53.449389"},{"label":"Best Buy","url":"https://www.bestbuy.com/product/bose-quietcomfort-ultra-headphones-2nd-gen-black/J7C5V6W7LP","currency":"USD","source_country":"US","price":379.0,"price_gbp":287.42,"scraped_at":"2026-06-26T13:51:53.449389"},{"label":"ABT","url":"https://www.abt.com/Bose-QuietComfort-Ultra-2nd-Gen-Wireless-Noise-Cancelling-Headphones-in-Black-8901010100/p/230800.html","currency":"USD","source_country":"US","price":379.0,"price_gbp":287.42,"scraped_at":"2026-06-26T13:51:53.449389"}],"summary":"...","ideal_for":"..."}]}