step 1. In any computer please open any text editor and create a file called time that should have the extension ".txt". You can use NotePad or WordPad to create such a file. step 2. In this file you will need to input your current time and date in the following format: yyyymmddhhmmss , where yyyy - is four digit year (ex. 2017), mm - is 2 digit month (ex. for November is 11), dd - 2 digit day (ex. if today is in 3rd - you must put 03). hh - means 2 digit hour in the 24 hours format ( not a.m. or p.m.) - ex. for the time clock 5 p.m. you must use the digit 17, for 6 a.m. is 06, etc; mm - is 2 digit format for minutes and ss - is 2 digit format for seconds.For example, I can input:20180524165003This is for the 24th of May 2018, 16:50:03 PM.Save the time.txt file on your desktop. (for Mac you can either install notepad or go to Mac editor and select the plain text format for your document in order to save a .txt file)Then transfer your time.txt file in the folder RECORD next to VOICE.

Yes, you can connect the recorder to an Android phone to playback recorders or manage files stored on the device. If you have a USB-C Android phone (2018 or newer) make sure you use a USB-C adapter to connect the recorder to your phone properly. The OTG cable is provided in the box. This recorder is compatible with Android phones for download and playback. You can only charge the iPhone via the power-bank.

No, it starts to have a flashing light, if the battery is running low. Unless the voice recorder is turned in the direction of the person being recorded, they wouldn't be able to see the light flashing. You have to be looking right at the end with the flashing light, to see it, and even then it's not really noticeable.  

The recorder has discreet lights that only show when you initiate recording. During recording there are no light visible.  

You can use specialized software like Audacity to clean the noise on the recordings.