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This is a recorder for long-time recording usage, only record stronger sound so that you can save power, storage and playback time, especially good for sleeping status recording, such as snoring, cough at night etc. , also you can get to know the specific time and period when snoring at night, know your sleeping quality, whether or not you have apnea issue etc. More Features: * For long recording,greatly extend the effective length of recording time,saving power and storage space. * All files are named by the date and time stamp automatically,and can be sorted by date. * Users can add a label to any file manually. * Mute time length can be set by users from 5s to 30s. * All of files can be played continuously by one click after checking the auto play option. * Multiple sharing f