{"niche":"哪款具有主动降噪（ANC）的耳塞电池续航最好？","description":"Which active noise cancellation (ANC) earbuds have the best battery life?","products":[{"brand":"Anker","model":"Soundcore Liberty 4 NC","price_gbp":74.67,"origin_country":null,"specs":{"brand":null,"model":null,"driver_size":"11","battery_life_hrs":"50","water_resistance_rating":"IPX4","noise_cancellation_level_db":"98.5","active_noise_cancellation_switch":"Adaptive ANC 2.0"},"confidence_score":null,"summary":"True wireless earbuds with 11mm drivers, Adaptive ANC 2.0 (claimed up to 98.5% reduction), LDAC Hi-Res support and long battery life (10h earbuds, 50h with case). Suits commuters and budget-focused listeners wanting strong ANC and customizable sound via the Soundcore app.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Soundcore","url":"https://www.soundcore.com/products/liberty-4-nc-a3947z11","currency":"USD","source_country":"US","price":99.99,"price_gbp":74.67,"scraped_at":"2026-06-07T18:09:22.470212"},{"label":"Best Buy","url":"https://www.bestbuy.com/product/soundcore-by-anker-liberty-4-nc-noise-canceling-true-wireless-earbud-headphones-black/JJ8586VJKV","currency":"USD","source_country":"US","price":99.99,"price_gbp":74.67,"scraped_at":"2026-06-07T18:09:25.249828"},{"label":"Verizon","url":"https://www.verizon.com/products/soundcore-liberty-4-nc/","currency":"USD","source_country":"US","price":99.99,"price_gbp":74.67,"scraped_at":"2026-06-07T18:09:28.045575"}]},{"brand":"Bose","model":"QuietComfort Ultra Earbuds (2nd Generation)","price_gbp":223.28,"origin_country":null,"specs":{"brand":null,"model":null,"driver_size":null,"battery_life_hrs":"6","water_resistance_rating":null,"noise_cancellation_level_db":null,"active_noise_cancellation_switch":"Yes (can be toggled via app)"},"confidence_score":null,"summary":"Premium in-ear ANC earbuds with Bose CustomTune, improved adaptive noise cancellation, wireless charging, and AI-based call noise suppression. Suited for users who prioritize top-tier noise cancellation, personalized sound, and reliable call quality.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Bose","url":"https://www.bose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.html","currency":"USD","source_country":"US","price":299.0,"price_gbp":223.28,"scraped_at":"2026-06-07T18:09:08.824026"},{"label":"Best Buy","url":"https://www.bestbuy.com/product/bose-quietcomfort-ultra-2nd-gen-true-wireless-noise-cancelling-in-ear-earbuds-black/J7C5V6WCKZ","currency":"USD","source_country":"US","price":299.0,"price_gbp":223.28,"scraped_at":"2026-06-07T18:09:11.574699"}]}]}