There are two colors of adult life jackets: yellow-white and bright red. Among them, bright red is used by crew members, and yellow and white are used by tourists. Both of these colors are warning colors, making it easy for rescuers to find and distinguish in the vast ocean. The life jacket is made of nylon material with two upper and lower air pockets, which has the function of double insurance. There are two high-pressure gas cylinders, one on the left and one on the left and right, as long as the bright red door handles on both sides are pulled on each side, the gas can be automatically pumped in 2 seconds; the boiler blowpipes on both sides can also be manually pumped to improve buoyancy. If the switching power supply for the indicator light is excited by sea water, the power supply system can last for more than 12 hours, and it is easy to be found at night. Some are also equipped with wind whistle (for calls), vanity mirror (reflective surface light source) and so on.

Maybe many people will unconsciously ignore the necessity of life-saving equipment when freestyle swimming, especially the current children. The children who go to the river to swim in the summer can be described as "a group". It is because parents have no experience and feel that they have gone to the water. The risk of swimming is just to advise children not to swim in the river, but they ignore the children’s adolescent rebellious psychology, which often causes irreparable results. In fact, we only need to prepare some life-saving equipment for children, such as lifebuoys, buoyancy vests, etc. Added advice not to swim in the Mozhi River at will, and let them cultivate the habit of carrying life-saving equipment with them to swim, so that accidents can be largely avoided.

When the drowning person steps on the water and wants to surface, the life jacket becomes an obstacle, causing choking. For those who can swim, they may be able to adjust their bodies on their own, but those who can't swim are already at a loss when they drown. The inability of a life jacket to help raise them will make them more panicked and cause drowning. The current buckle designs of life jackets are more convenient and sturdy. If the clothing is correct, it will not disperse easily even if the sea is turbulent or floated for a period of time, and the possibility of survival will be greatly increased. *Important *The important point is to stab the belt to prevent it from being impacted during diving or floating for too long.

So how do you wear a life jacket? First, put the life jacket on the neck, put the square buoyancy bag in front of you; fasten the collar of the belt. Then pass the left and right abdominal belts over the buckle loops on the left and right sides respectively, and wrap them behind the body; *Then, pass the abdominal belts over the buckle loops on the chest and tie the knot. Remember to fix the two straps at the roots of the thighs. It is useless if you just put them on the body like a waistcoat. Because the human body moves down in the water and the life jacket is raised, if you don’t fasten these two straps, the life jacket will run up, and you will be uncomfortable with your neck and shoulders. Needless to say, the life jacket will be taken off after a few waves hit back. In fact, 88% of people don't know, but this is indeed a rescue point.

Among them, the test-fired wireless antenna is installed around the cabin door of the tourist import and export trade, and the signal range can be adjusted. When the plane lands, the conductor turns on the control panel (it is prohibited to use during the flight) and enters a working state. If someone takes the life jacket without authorization and takes it to the periphery of the cabin door, the signal range can be adjusted. When the plane lands, the conductor turns on the control panel (it is prohibited to use in mid-aircraft) and enters a working attitude. When the life jacket manufacturer takes a quantity of the life jacket without authorization and brings it to the wireless antenna test signal range at the cabin door, the control panel will The alarm sound is heard, and the target block installed in the life jacket also emits the alarm sound. When the stolen life jacket leaves the wireless antenna signal range, the control panel will stop the alarm sound, but the target block will still emit the alarm sound, for the conductor to take action. The role of the hand-held tester is to eliminate the sound of the alarm and the target block used to remove the life jacket.