CENIX S20 is a professional voice recorder, it uses the original real-time stereo microphone to capture the original sound with high sensitivity, low noise; Supports linear PCM format, record the sound quality comparable to or exceed the level of CD; Support three kinds of audio formats, selection of a variety of audio bitrate; Support for audio recording, timing, telephone (line) recording, handheld devices, track recording, both internal and external microphone (condenser) recording; Built-in speakers,support 7 kinds of format audio file playback: MP1-3, APE, WMA, OGG, AMR, FLAC, WAV; Support voice acquisition, the hearing-aid function, alarm clock, calendar functions; USB 2.0 interface storage functions, besides the machine own memory extensions also support the Micro SD card, support four kinds of recording scenes.