Vn4100 Digital Voice Recorder. Vn4100 is basically the best sound recorder that I have ever used. It is actually an Olympus brand with the capacity of recording 144 hours of voices. The thing that makes this pocket size recorder more interesting is its beautiful shape. Instead of buttons it is equipped with the thumb pad which is not only more useful then buttons but is also very quick in use. And now you can easily rearrange the files and can search for the required recording more easily then ever before. You can also control the playback speed using this thumb pad. This help you make the recorded sound 50% faster then its actual level and can also make it slow by 25%. And other thing that makes it more special device is its voice activation mode. This feature not only safes battery time but is also very useful in certain circumstances. The sound that you record in this recorder can be in four modes.

1) XHD ( for extremely high quality)

2) HQ    (for simple high quality)

3) SP   (for common recording) 

4) LP (for long time recording)

The device also has a reasonable size LCD screen on front of the recorder. And when it comes to talk about the technical details of the device, you will amaze to see that it has more then 25 hour battery life. You be having versatile voice recording modes in this device. It has 256 MB of flash memory. You have the option to place your recorded files in four different folders. It is about 4 inches large, 0.5 inch in thickness. And if you do recording at XHD mode, you can easily record 11.5 hours. And if you are recording in LP mode, you can easily record around 145 hours of voices. So, in both cases, you are at no danger of storage capacity. The thing that makes it easier in use is its battery. As it operates with simple A type battery. And once you place new pair of battery, you can easily record around 50 hours of talking. The accessories that you will be given with the purchase of the recorder are, a USB cable with which you can attach your recorder with your personal computer and laptops, two manual to help you to understand the features of the recorder more easily (here one of the two manuals is for the understanding of sound enhancement feature), and a CD for the installation of driver of this recorder.