8gb usb flash voice recorder audio recorder usb voice surveillance device u disk audio recorder build in 8gb memory 5pcs/lot

8gb usb flash voice recorder 1, quality excellent, up to 192 kbps / 48 khz (4g capacity to support 48 hours of working time); 2, time-stamped, convenient recording data compilation; 3, the default normal recording, can adjust to the voice operated switch mode; 4, monitoring function (function of hearing aids, amplifying sound, while listening to recorded);