GBTDual

Key Features:
- Display two timers in portrait view
- Set time to second by picker
- time turned to red for 5 seconds before finish
- Finish notification
: sound / vibration / mute
- Timer2
: Timer2 starts separately from Timer1.
:Timer2 and Timer1 start at the same time.
:Timer2 starts after Timer1 ends.

Customizable Features:
- Set Time
- Pause & Resume
- Stop
- Finish & Reset

※ Timer cannot run for more than 3minutes in background & lock.