Steren MP3-002 Manual De Instrucciones página 45

Contrast
Use this menu to set the LCD contrast. Use Forward / Backward, then press
Mode to save changes.
Online mode
-Multi drive.
-Normal only.
-Encrypted only.
Memory info
Displays memory status.
Firmware Version
Displays firmware information.
Ear Setting
- Ear protecion: Disable or enable ear protection.
- Ear level: Control de general volume (High, middle and low)
Key tone
Volume control of keys.
Firmware upgrade
In case you have a firmware update, use this option.
Exit
19