Discreetly record conversations with the MQ350 Voice Recorder from Minigadgets. This fully functional USB drive has 8GB of built-in storage to save recorded audio and other documents and files. Turn on voice-activated recording to conserve battery and get up to 25 days of standby power or simply press the record button to begin capturing audio instantly. The built-in battery enables the device to record continuously for up to 24 hours. Recordings are saved in MP3 format.