definition recording: Uses an advanced thirdgeneration recording main control chip with a quality noise reduction algorithm to minimize environmental noise, delivering recording that is clearer and more natural. Voicecontrolled recording: Supports audio recording by voice activation with silent automatic sleep to save memory and power. Onebutton recording keeps operation simple and intuitive. Multifunction recording: Includes poweron recording, up to 50meter longdistance recording, poweroff protection, timestamp support, ultralong standby, timestamp memory, and noise elimination. Also functions as an MP3 player and supports USB drive usage. Multipurpose design: Serves as a recorder, MP3 player, and USB drive with a dedicated multifunction key. Features a compact, attractive appearance, no LED light, and silent operation for discreet recording anytime and anywhere. Suitable for work and study, and especially useful for evidence collection where discreet, small devices are advantageous. Use scenarios: In meetings or lectures to capture clear, reliable audio without missing details, thanks to voice activation and definition recording. In field work or investigative contexts where discreet, unobtrusive recording is important for evidence collection. As a portable MP3 player and USB drive for offline playback and data transfer during travel, study, or work tasks.