This document is a manual for MP3 files, which mainly introduces the functions and features of MP3 files, including song playback, volume adjustment, EQ adjustment, etc.
The Gemei M450 is a portable digital audio player that supports MP3, WAV, and WMA formats, FM radio, and offers features such as playlists, EQ settings, and USB 2.0 connectivity. This guide provides detailed instructions on using the device, managing files, and customizing audio playback.
Safety precautions, battery handling, and troubleshooting tips are included, along with a full specification table for audio performance, power consumption, and supported functions. The manual also explains how to update firmware and format the player. This manual is written in Chinese.
| Supported audio formats | MP3, WAV, WMA |
|---|---|
| Frequency response | 20 Hz – 20 kHz |
| Total harmonic distortion (THD) | 0.05 % |
| Sample rate range | 8 kHz – 48 kHz |
| Output power | 5 mW × 2 |
| USB interface | Full‑speed USB 2.0 |
Select the format option in the menu and follow the on‑screen prompts; see the formatting section for details.
WMA files are not fully supported due to protection restrictions; the player may not decode them correctly.
Avoid using the player in high temperature or humid environments and remove the battery when not in use to preserve charge.