歩行者用ベル

- After starting, you will hear a slowly back and bell sound to defeat behind in the state looking at the screen of the smartphone.
※ and you need a knack for sounding good timing. Also it may become sound in unexpected timing.
Stop button to touch the app is finished and the sound will stop.
※ As long as you do not touch the stop button, you get the sound If you close the screen.
- Volume you can change the size of the sound in the bar.