PANICTECH Lightest 8GB USB Digital Activated Voice Recorder Mp3 player Audio Voice Recorder 580 Hours(Silver color) Memory size: 8GB - 480 hours recording | Auto save, recordings are saved instantly Dimensions: 45 x 17 x 5mm | Supports USB 1.1/USB 2.0 Support system: Win 2000/xp/vista 32, Win 7, Mac OS Built-in flash memory; Long time voice recording 30 minutes on a full charge, when the battery is low voltage automatically save the recording