Thank you for using iAUDIO products.

We found out the noise problem when using voice recorder as many users had feedback.
This problem was from the sound of turning on LCD backlight when recording.
These CW200 & CW300 are very small, but sensitive enough to catch that noise thru a microphone.
And the problem solved by removing the backlight function while recording.
It would be nice to have backlight, but at the same time, to have clear sound for recording, it was necessary.

If you would like to have this upgraded firmware, please visit the link below to download.

Please check your firmware version before download the file. Thanks.