【High Sound Quality and Voice Activation】: The recorder is an upgraded digital recorder, the higher sensitivity microphone can provide clear 3D recorder sound, the recorder has a built-in speaker, it is a voice-activated recorder that can pick up sound well, only capture sound recording, no longer silent whispers or fragments, effectively saving space and time.【Easy Operation, Portable Design】: There are three large buttons, recording, saving, play/pause, the operation of the recorder is easier, the back of the recorder also tells you what each button does. Make it a perfect recording device that is user-friendly, it is a great pocket recorder, you can carry it conveniently.【A-B Repeat Function and Wide Application】: You can start from point A and end at point B in the recording file, the recorder is powerful and more helpful to help you repeat what you forgot or important information. A convenient tool for meetings, lectures, courses, interviews, etc.【Large Capacity Storage and Long Battery Life】: The built-in rechargeable lithium battery can provide 21 hours of continuous recording, each full charge, the digital recorder can continuously record headphones for 8 hours, it is a reliable recorder.【MP3 【Player and Easy File Transfer】: The recorder can be used as an MP3 player, you can enjoy music after studying or meeting. The recorder supports recording files in MP3 or WAV format. It is also a removable flash drive, you can easily transfer and save files by connecting to a computer via a USB cable.