The flashing green light means that the Lark is connected to your mobile device. At this point, you will be able to edit your alarm setting and have your sleep data transferred to your mobile device. The flashing green light occurs when you unplug Lark from the dock or in the morning minutes before you wake up. When the green light is no longer flashing it means Lark is in powersave mode and is not emitting a signal.
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