What is the recording pen for?

First, it depends on the time you need to record, whether you keep recording at work or turn it on when necessary. If it is always on, you need this recorder to record with the best recording effect during normal working hours. In fact, the capacity of 128M can be reached now. Of course, it may be necessary to change the battery in the middle, because the quality of the battery is not very good now, and it can't reach the time to talk. Secondly, if you want to put it in your pocket to record the sound outside, you need this recorder to have the function of an external microphone, and it is best to bring an external microphone with you. In this way, if you put the recorder in your pocket and put the wheat in an inconspicuous place outside your clothes, such as the line from the back to the bottom of the shirt collar, you can record all the conversations without anyone knowing. The effect is still very good. As for the price, the recording pen is still a professional equipment, so the price has been relatively high, generally around 500 yuan, so the price may not be very cheap. At present, both MP3 and MP4 can record, but most of these functions are only incidental functions, and the recording effect is poor. So don't filter MP3/4 in your situation. There are too many brands and models of recording pens at present. You can go to the shopping mall where these products are sold. As long as you can meet the above requirements and the price is right, you can win them. In terms of brands, domestic brands have just put into production to make voice recorders, so it is best to find some brands that have been making voice recorders for a long time.