Automatic encryption function: The recording data can be encrypted and stored to prevent theft and unauthorized use. Timing recording function: Convenient and fast timebased recording; helps you master and manage recorded content. Multifunction use: This is a recording pen with file storage and the ability to connect to a computer for viewing stored files. Long recording and standby life: 35 hours of continuous recording and up to 30 days in standby. Timestamped files: Each recording has a time stamp, and the filename reflects the recording time for easy recall and organization. Playback formats and controls: Supports MP3, WMA, and WAV playback with fast forward and rewind. quality PCM recording: PCM recording up to 1536 Kbps, with additional recording at 50 dB, automatic split recording, and overwrite loop recording. Data protection on power loss: Automatically saves when power is off to prevent file loss. Durable build and practical design: Zinc alloy material with a black sandblasted finish and 5D glass for a end appearance; includes a lanyard hole for portability. Userfriendly operation: Onekey recording, controlline delete function, and an LED playback indicator for easy status recognition.