A:AnswerNo, it's not a hi-tech surveillance device. If you can't understand what's being said naturally, you probably won't in the recording. The only advantage to recording it is that you can replay it.
A:AnswerNo power adapter. There is no jack for an adapter or charger. The help guide indicates that rechargeable batteries will work, but a battery charger is a separate item.
A:AnswerYou have to start recording by pushing the record button. Spec says it will record up to 159 hours with built-in memory. It saves the recording as an mp3 file, which you can move to a computer through the USB-A port.
A:AnswerIf you have to have a "clean" recording, it can be adjusted using an audio edit program. But there is a noise reduction function in the recorder. Depending on the particular phone type you are using, you'll have to figure out how to apply it for phone recording. This unit has an external mic input.
