Features: It is very covert; real-time recorder. brand new and high quality Built-in high capacity rechargeable battery, fully charged, it can record continuously for 85hours. The voice recorder have high quality recording microphones with intelligent dynamic noise reduction, providing you with a full clear recordings and playback easily. Voice activated recorder for a business meeting, lecture class, conference, travelling, investigation or evidence .It's very small you can take it anywhere. You can use it as a hidden recorder in your pocket to secretly record live conversations without anyone realizing it,without sound and light. Specifications: Built-in Memory: 8G,16G, 32G,(Optional) Size: 46x18x6mm/1.81x0.71x0.24in Material:ABS Color:Black Recoding Distance: About 16.40Feet/5m USB 2.0 Port Recording Time: 8GB/96Hr 16GB/192Hr Recording Format: WAV Sampling Rate: 192Kbps Power Supply, Rated Voltage Lithium Battery (80MA): 3.6V-4.2V Battery Life: 10 hours of Recording Playing Time: 6 hours Supported Operating System:Windows 98 Second Edition/2000/XP/for Windows 7 Package Includes: 1x Voice Activated Recorder 1x USB Cable 1x Earphone 1x Manual note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.