Ruizu D16 - FM radio; Presets; Manual tune; Auto tune

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FM radio
Touch button with “FM radio” on main interface to
access to its function. And a related list will show up.
Note: Wired headphones are required as antenna
for FM radio function. FM frequency range 87.50 -
107.00 HZ.
Presets: Search and Save channels to preset.
Manual tune: Manual Search FM signal.
Auto tune: Auto Search FM signal.
FM Recording: View recorded FM radio.
Settings
While on radio playing, touch Menu button go to its
sub-menu. A related list will show:
Start FM radio recording:
Record current playing FM radio.
Radio background:
Enable FM radio play even quit “FM radio” section.