This document describes the main functions of the VR481 English manual, including folder management, recording methods, recording time display, free memory space display, microphone sensitivity adjustment, repeat playback, and timer recording function.
The VR481 manual outlines the main functions of the voice recorder, including four recording methods (HQ, MP, SP, LP), repeat modes, timer recording, alarm functions, and a 24‑hour clock. It also explains the display indicators for recording status, battery level, and various operation modes.
Additional sections cover battery management (low‑battery alarm at 2.0 V), automatic power‑off after 30 seconds of inactivity, and data transfer via the USB 1.1 communication port for uploading and downloading recordings to a PC. Navigation of the menu system and file/folder handling are also detailed.
| Maximum memory capacity | 4 × 99 files |
|---|---|
| Battery low‑voltage alarm | 2.0 V |
| USB interface | USB 1.1 communication port |
| Clock function | 24‑hour format |
The VR481 supports four recording modes: HQ, MP, SP, and LP.
Recordings can be uploaded or downloaded via the USB 1.1 communication port.
It flashes for 5 seconds when free memory is zero or a folder has reached its maximum of 99 files, indicating recording is not possible.