This product is a portable USB large-capacity storage device that supports MP1.2.3, WMA, ASF, WAV, etc. music files, can record and save WAV and ACT format voice documents through a microphone, and can choose segment replay or comparative replay, and realize the true digital replay function.
This manual covers important safety measures and proper usage instructions for the NA700 portable MP3 player, including handling, environmental limits, and user responsibilities. It also describes the device’s features such as USB storage, multiple audio formats, FM radio, recording functions, language support, and various playback modes.
Detailed sections explain button functions, power on/off procedures, battery charging and life, system menu navigation, and troubleshooting steps for common issues. The final page lists the technical specifications of the NA700, including dimensions, weight, screen, supported file formats, USB data rates, battery capacity, and operating conditions. This manual is written in Chinese.
| Model | NA700 |
|---|---|
| Dimensions | 30 × 58 × 13.5 mm |
| Weight | 25 g (without battery) |
| Screen | 128 × 64 pixels, 4‑line display |
| Supported Languages | Simplified Chinese, Traditional Chinese, English |
| USB Data Rate | Read 1000 KB/s, Write 900 KB/s (USB 2.0) |
| Music File Formats | MP3, MP2, WMA, ASF, WAV |
| Recording File Formats | ACT, WAV |
| FM Frequency Range | 76‑96 MHz / 87‑108 MHz |
| Maximum Output Power | 10 mW |
| Power Supply | 3.6 V polymer battery |
| Battery Life (MP3 Playback) | ≈ 7 hours |
| Operating Humidity | -5 °C ~ 40 °C |
| Supported Operating Systems | Windows XP, Windows 7, Linux 2.4.2, Windows 98 |
The battery provides about 7 hours of continuous MP3 playback.
Check that the battery has charge, ensure the power button is pressed correctly, and verify that the USB cable is properly connected if using automatic power‑on.