Anger off / Decompression device

Modern people are getting more and more pressure. Although shoutting is a good way to vent their pressure, but shoutting in non-sound-insulation room may lead to something embarrassing. More than that, people do expect a direction to adjust their emotion. "Anger off" can solve all these problem. Sound Arrest System allow you shout anywhere without disturbing others. The Detection System which installed in your smart-phone can do wireless communication with "angry off", record the emotional variation and be your emotion-guider to lead you out of affective issues.