You can appeal to exist at the time of the night of running and prevent the accident by mounting your handset to your arm band.

You can customize the lighting color and interval to blink,

Flashing interval:
10 milliseconds can be set at 10 milliseconds between to 2 seconds

Lighting color:
16,770,000 colors can be set.
Set from nine colors in 'Easy Color Setting' possible.

For the free version, after the lighting start-up, and no operation sleep (dark screen) in 15 minutes.

For the paid version,
- Without the lighting time limit, it will continue to light up.
- advertising disappear.