U Disk Voice Recorder: Unique U disk shape design, plug and play, lightweight and portable, can be put in pockets, briefcases, drawers, anytime, anywhere with one-touch recording. Intelligent voice-activated recording: Supports voice-activated recording, recording when there is sound and automatic pause without sound, effectively saving storage space, filtering out invalid clips and reducing playback time. DSP digital noise reduction technology: According to the type of noise in different environments, it can adjust automatically received sound wave and filter to reduce environmental noise. U disk directly inserted: no data cable, no need to transfer interface, USB plug directly into the computer , you can use it as a U disk and quickly import data. Time stamp recording : Built-in time chip, with automatic time synchronization function, recording files are named by time (year, month, day, hour, minute and second).