If you are in emergency, such as losing your way or boxed in difficult situation, you can connect neither to the internet nor to the telephone network. You suddenly are aware that there is a rescue team coming, how could you send out a SOS signal?Run “SOS救命光” at once!! The flash of your device will turn into a torch, and flashes at revolving 3-long 3-short light according to the International Morse Code, so that the rescue team could reach you at once.Apart from the flashing light, “SOS救命光” also provides to you some first-aid reminders so that you can save your own life or help to save others while waiting for the rescue team to come.Reminder: please do not treat “SOS救命光” as a toy and run it without a purpose to avoid misunderstanding