or remote viewing
或者遥视
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The free SwannView app offers convenient remote viewing functionality to the DVR4-4000 or DVR8-4000 kits by allowing you to set up live remote viewing on your mobile device.
ENGADGET: Swann TrueBlue 4000 series D1 DVRs pack up to 8 cameras, 1TB of storage for home security
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