One Hand Stopwatch

You operate this stopwatch only with two keys,VOLUME-UP and VOLUME-DOWN.
You can operate this with gloves if the volume keys are hardware keys.
You can operate this with one hand if the volume keys are on the side of your phone.

[ Operation explanation ]
The VOLUME-UP key is START, STOP or ENTER.
The VOLUME-DOWN key is SPLIT ( LAP ), RESET or MENU.

When you exit this stopwatch, you must choose "EXIT" in the menu.
( The "BACK" key is invalid. )

[ Setting ]
-Vibration
ON : The vibration every key operation is effective.
OFF: The vibration every key operation is invalid.
-Opening Explanation
ON : Opening Explanation is effective.
OFF: Opening Explanation is invalid.