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This device is small and portable,open the top cover,you will see a compressed gas cylinder equipped with helium inside. Turn on the valve and quickly inflate the survive balloon to get it raised.Like flying a kite，insert the fork which is under the device into the ground and fixed it.The body of the balloon is tinted with red distress color whose inverted pyramid shape can achieve a maximize effect from overhead and low angle view., the reflective strips on the balloon and the intermittent laser lights at the four corners can ensure all-weather visibility to increase the opportunity of being searched.
ChuanFei Xie, Kun Li, LingYu Ding, Bin Long