1LARGE MEMORY: Large memory stores up to 130 hours of recorded material (512kbps) with a 190mAh battery for up to 35 hours of continuous recording and automatic save when the battery is low. Support WAV format and MP3 format. 2ONE BUTTON RECORDING: Press the record (save) button to start recording (save recording), don't worry about losing the content you want to record, HD color display, easy to operate. The recording device has a built in speaker, and the recording can be played directly. (It will be better if you listen with headphones) 3DSP NOISE REDUCTION: Digital voice recorder is equipped with a powerful DSP noise reduction chip and two sensitive microphones, the recorder can automatically reduce ambient noise and record and playback premium sound quality clearly. 4MULTI FUNCTION: Small tape recorder has more functions: timer recording, monitor recording, delete recording, AB repeat. Suitable for a variety of scenarios, meetings, lectures, classroom notes, interviews, concerts. 5VOICE TO TEXT: Voice recorder not only supports web version transcription, but also connects to recorder and cell phone via OTG cable to transcribe voice files and realize text editing function.