This recorder can realize HD remote recording, and the sound is very clear within 10 meters,this recorder has MP3 playback function. Besides recording voice, you can also listen to music. This recorder uses the original professional chip, 8-core DSP noise reduction. Its fidelity can be as high as 99.5%. The recording effect is as if you hear it yourself. This recorder has an extremely long recording time and can be recorded up to 1200 minutes. What's more, its password setting protects recording files. This recorder has a variety of modes for you to choose. You can freely switch among loop mode, sound mode, and repeating mode. In addition, there are five quality recordings available for this recorder, 32KBPS-384KBPS. You can easily choose what you need.