As a spy recorder, small and discreetUsed for covert audio monitoringThe same size and appearance as a simple USB thumb driveNo mark indicates that it is a recording deviceNo light flashes during recordingUse as a hidden voice recorder in your pocket to secretly record real-time conversationsUsed as a listening device to collect surveillance evidence about the treatment of relatives in nursing careUsed to gather evidence of bullyingEasy to use and charge-just switch and operateOne-click recordingIt has complete functions, compact size, and only needs 2 hours to fully chargeBuilt-in rechargeable 110mAh lithium battery, supports 18 hours of continuous recordingAutomatically save files: The recorder has a built-in intelligent battery detection function, which can automatically save the recording before the power is exhausted