This digital voice recorder is capable of recording for continuous 20 hours clearly and hard to be perceived due to pen shape. And it can be used as a normal U disk to connect to a computer through USB for storing and transmitting voice files. Furthermore, recorded voice files can be played immediately through MP3 function. Features: Pen Shape - Pen appearance makes it look like a real pen, which is hard to be perceived. 20-hour Recording - To record sounds for 20 hours continuously. Intelligent Noise Reduction - High recording bit rate up to 192kbps and independent recording make recorded voices super clear. U Disk Function - The audio recorder can be used as a U disk normally to connect to a computer through USB for storing and transmitting voice files. MP3 Function - It plays recorded voice files immediately through MP3 function. Specifications: Product type: Pen Shape Digital Voice Recorder Recording time: 20 hours Recording bit rate: 192kbps Independent recording: Support Recordin format: WAV Noise reduction: Support MP3 function: Support U disk function: Support Power supply: 150mAh Package size: approx. 18 * 9 * 9 cm/ 7.1 * 3.5 * 3.5 in Package weight: 118g/ 4.2oz Package List: 1 * Pen Shape Digital Voice Recorder 1 * User Manual 1 * Data Cable 1 pair of Earphones . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.