Automatic encryption and time control Automatic encryption function: recording data can be encrypted and stored to prevent theft and provide safer use. Timerecording function: convenient and quick time control. This is a recording pen that can be used for file storage and connected to a computer for viewing. Long battery life and versatile playback 35 hours of continuous recording and up to 30 days of standby. With timestamp, the recording file name is generated according to the time. Supports MP3, WMA, and WAV playback with fast forward and rewind. quality recording and reliable storage 1536 Kbps PCM recording. 50 dB additional recording. Automatic split recording and coverage loop recording. Auto save when power is off; files will not be lost. Build, design and usability Alloy material with black sandblasting, 5D glass, appearance, attractive design. Lanyard hole included. Onebutton recording, with control elimination function. LED light playback indication. Use scenarios Business meetings and conferences: secure encrypted storage, long recording time, and easy review on a computer after the meeting. Lectures and classes: longduration capture, timestamped filenames for organization, and convenient playback of recorded material. Field interviews and research: durable alloy body, long standby, looping recording to avoid data loss, and immediate transfer to a computer for analysis.