最适合旅行使用的便携式音频婴儿监听器是哪一种？
| Product ⇅ | Price ⇅ | Frequency Range (Hz) ⇅ | Transmission Distance (m) ⇅ | Battery Life (h) ⇅ | Sound Quality ⇅ | Power Source ⇅ | Night Vision ⇅ |
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Eufy Security E21 4K UHD Baby Monitor (with 5in Parent Unit)
US
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£193.68 ≈ | — | 304.8 | 9 | 主动降噪可降低背景噪音 20 dB | Camera: 5000mAh 可充电电池；Monitor: 可拆卸 5000mAh 电池 | ✓ |
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The Eufy E21 is a 4K UHD baby monitor with a 5in parent unit, 330° pan, 60° tilt, 8× zoom, and a portable camera that includes a 5000mAh battery for up to 9 hours of operation. It supports hybrid Wi‑Fi or local (Wi‑Fi‑free) monitoring, has active noise reduction and split‑screen monitoring, and offers encrypted private connections, making it suitable for privacy‑minded parents and travel use. ★ 适合人群适合旅行：摄像头内置 5000mAh 电池最多可提供 9 小时的便携运行，且设备支持无 Wi‑Fi 的本地监控。 |
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Nanit Nanit Pro (travel friendly with dedicated parent unit)
US
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£216.03 ≈ | — | — | — | 双向音频，内置麦克风和扬声器；评测为高质量且清晰 | Electrical plug (AC) | ✓ |
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The Nanit Pro is a 1080p overhead smart baby camera with infrared night vision, two-way audio, and removable camera that snaps into a Flex travel stand for portability. It offers breathing motion monitoring when used with Nanit Breathing Wear and works with the Nanit Home 8in dedicated parent display or the Nanit app for remote viewing. ★ 适合人群适合旅行使用，因为摄像头可拆卸并兼容 Flex travel stand，且在快速重新安装后仍保留完整的视频与双向音频功能。 |
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VTech DM221 Audio Baby Monitor
US
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£29.78 ≈ | — | — | 46 | 出色的清晰度 | 可充电电池和交流适配器 | — |
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The VTech DM221 is a DECT 6.0 digital audio baby monitor with excellent sound clarity, long battery life, two-way talk, and a remote night light; it's a basic, affordable unit suited to parents who prioritize audio quality and battery endurance. It uses sound activation and adjustable mic sensitivity and offers secure, non-WiFi encrypted transmission. ★ 适合人群适合旅行导向的便携使用；配备可充电电池，续航约 46小时，且父母机体积小巧，带有腰夹便于携带。 |
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