Design and build Zinc alloy material with a black sandblasted finish and 5D glass for a look and feel. Includes a lanyard hole for convenient carrying. Recording and playback features Onekey recording with a control line delete function and an LED playback indicator for easy operation and status at a glance. Battery life and power management Up to 35 hours of continuous recording and 30 days of standby time, supporting long sessions without frequent recharging. File management and time stamping Time stamped recordings; the file name is tied to the recording time for quick recall and organization. Playback formats and controls Supports MP3, WMA, and WAV playback with fast forward and rewind functionality. Recording quality and data handling PCM recording at 1536 Kbps with additional recording at 50 dB. Automatic split recording and looping cover long sessions efficiently. Automatically saves when power is off to prevent data loss. Security and scheduling Automatic encryption of recording data to prevent theft and misuse. Timed recording function provides convenient scheduling for planned recordings. Storage and PC connectivity Serves as a recording pen with file storage capability and the option to connect to a computer for viewing and management of recordings. Use scenarios Business meetings and interviews: discreetly capture conversations with long battery life, timestamped files, and encrypted storage for security. Lectures and classes: reliable longduration recording, clear playback in MP3/WMA/WAV formats, and easy navigation with timebased file names. Field research and archival storage: robust build, loop and split recording to manage extended sessions, and simple transfer to a computer for review. Notes The product retains all original specifications: zinc alloy construction, black sandblasting, 5D glass, lanyard hole, onekey recording, control line delete, LED playback indicator, 35 hours of continuous recording, 30 days standby, timestamped file names, MP3/WMA/WAV playback with fast forward/rewind, PCM 1536Kbps, 50dB additional recording, automatic split and loop recording, autosave on power off, automatic encryption, timed recording, and computer connectivity for viewing.