35 hours of continuous recording and 30 days of standby Timestamped files: each recording is named by its time, making it easy to locate later. Playback compatibility and controls Supports MP3, WMA, WAV playback with fast forward and rewind. Security and data protection Automatic encryption protects recordings from theft and unauthorized use. Convenient scheduling and usage Timed (scheduled) recording function for convenient, quick control. It operates as a recording pen for file storage and can be connected to a computer for viewing. fidelity recording PCM recording at 1536Kbps, plus additional recording 50db. Automatic split recording and looping/overwrite recording to maximize storage efficiency. Automatically saves when power is off to prevent data loss. Build quality and design Zinc alloy body with black sandblasting and 5D glass finish for appearance. Includes a lanyard hole for portability. Onekey recording with a controlline delete function and LED playback indicator. Use scenarios Business meetings and interviews: capture precise audio with timestamped files, protect recordings with encryption, and review on a computer later. Lectures and seminars: long recording time supports entire sessions; scheduling simplifies automatic starts and stops. Field notes and onthego recording: durable build and portable form factor, plus easy USB viewing on a computer.