[Recording and playback function] This recorder can achieve high-definition remote recording, the sound is very clear within 10 meters, and this recorder has MP3 playback function. In addition to recording, you can also listen to music.[Adopting professional chips] This recorder adopts original professional chips and 8-core DSP noise reduction. Its fidelity is as high as 99.5%. The recording effect is as if you heard it in person.[Extremely long recording time] This recorder has an extremely long recording time, up to 1200 minutes. In addition, its password setting can protect the recording file.[Multi-mode selection] This recorder has a variety of modes for you to choose from. You can switch freely between loop mode, sound mode and repeat mode.[Five quality recordings] This recorder has five quality recordings to choose from, 32KBPS-384KBPS. You can easily choose what you need.