{"niche":"哪款视频婴儿监视器在价格、功能和用户评价之间提供了最佳综合表现？","description":"Which video baby monitor offers the best combination of price, features, and user reviews?","products":[{"brand":"eufy","model":"Baby Monitor E21 (S340)","price_gbp":194.88,"origin_country":null,"specs":{"range":"1000 ft (open environment)","resolution":"4K UHD","battery_life":"5000mAh battery ~9 hours (5.5 hours with night vision)","night_vision":"Infrared night vision","pan_tilt_zoom":"330° pan, 60° tilt, 8× zoom","two_way_audio":true},"confidence_score":null,"sources":[{"label":"Best Buy","url":"https://www.bestbuy.com/product/eufy-e21-baby-monitor-with-4k-camera-and-charging-base-white/JJ858RPCKY","currency":"USD","source_country":"US","price":259.99,"price_gbp":194.88,"scraped_at":"2026-06-10T19:32:13.876524"}],"summary":"The eufy Baby Monitor E21 features a 4K UHD camera with 330° pan, 60° tilt and 8× zoom, infrared night vision, two-way audio, and a 5,000mAh rechargeable camera battery for portable use. It supports hybrid monitoring (with or without Wi‑Fi), local encrypted recording, smart alerts (cry/noise/temperature), and a 5‑inch parent display with split‑screen support. This suits parents who want high-resolution, flexible monitoring for home and travel.","ideal_for":"非常适合寻求性价比与功能评估平衡的买家，因为它提供 4K 分辨率、330° pan/60° tilt/8× zoom、本地加密录制，以及可提供约 9 小时便携使用的 5,000mAh 电池。"}]}