5pcs/lot ur09 4gb usb disk voice recorder,sound rec flash driver audio recording

memory :build in 4gb,built-in 110 mah li-battery,recording format : wav recording bit rate: 128k bps recording time: 4gb: about 70 hours battery time: about 15 hours the indicative light is inconspicuous, easy operation and concealed most sound recording devices without display screen will have indicative light. but the light is too "high profile"even it can display the working condition. indicative light of the item is inconspicuous. it is difficult for you to associate a voice recorder.