User's Manual

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Then tap the icon you desired and choose the music file as the ring of incoming call.
3.3.5 Pair Devices
1) Tap the icon
on the Bluetooth menu and enter into the following interface.
A Return to the Bluetooth menu
B Next
C Delete all the Devices information
D Disconnect the Devices you chose
E Connect the Devices you chose
3.4 System setting
Tap the icon "System" on the main menu and enter into the following interface.
A
B
C
D
E