Anybest&reg; USB Digital Activated Voice Recorder Mp3 player Audio Voice Recorder-Black (16GB) 16GB USB Pen Drive Digital voice recorder with a much superior Level with greatly improved performance when compared to other recorders currently in the market. Memory size: 16GB - 180 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