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3. Operation
change to a different language simply follow the following
steps:
Settings → Language Setup → English
Note:
Available languages: English, Spanish, Portuguese,
French, Italian, German, Dutch, Norwegian, Danish,
Swedish (Region 1); English, Czech, Polish, Hungarian,
Russian, Hebrew (Region 2); English, Chinese (Region 3).
t Sound Settings
Adjusting the Speaker Volume
You can adjust the speaker volume to suit your required
sound level:
Settings → Sound Settings → Volume
Settings → + / -
Volume
Disabling and Enabling the Key Tone
You can disable or enable the BT-
390’s key tone:
Settings → Sound Settings →
Key Tone Setting → Enable/Disable
Key Tone Setting
Enable Exit
u Display Settings
Adjusting Display Contrast
You can adjust the contrast of the LCD display:
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