Once dropped into the water, the airbag is automatically inflated and inflated into a life jacket or lifeboat with a buoyancy of more than 15 kilograms within 5 seconds, so that the head and shoulders of a person can surface and provide safety protection. When the wearer's head falls into the water or is in a coma due to injury, it can automatically adjust the posture of entering the water so that the head is always upside down, which can provide the best safety and rescue.
