La description

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3.5 inch touch screen .
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2.0M camera
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support Micro-SD card up to *2GB
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***0mAh lithium battery***0mAh built-in back up battery ,long time standby
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Infrared Night vision to see the corridor clearly even in darkness
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shoot photo/video automatically
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Auto detect and alarm to alert illegal intruders
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video messages, visitors can leave message when owner is not at home
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PC Sync to upload/download data easily
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calendar, convenient for life
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SMS alarm , when visitors press doorbell, if the owner is not home, it will connect to his/her appointed mobile phone automatically
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Auto detect and alarm to alert illegal intruders and burglars.
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Support **0/**0/***0/***0 MHZ
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CE/FCC certificated,meetROHS standard