Instruction Manual MP3 F820 PLUS Player/FM Tuner
4.6 CONTRAST
Step 1: Press 
to enter the menu selection.
Step 2: Press 
to choose the “CONTRAST” option.
Step 3: Press 
to choose the contrast level.
There are 16 levels to choose from.
4.7 LANGUAGE
Step 1: Press 
to enter menu selection.
Step 2: Press 
to choose the “LANGUAGE” option.
Step 3: Press 
to choose the display language.
There are three modes to select:from
1.中文简体
2.中文繁體
3.ENGLISH
4.8VERSION
Step 1: Press 
to enter menu selection.
Step 2: Press 
to choose the “VERSION” option to see the version.
Note: The version of the software refers to the product.
4.9 SN
Step 1: Press 
to enter the menu selection.
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