The summer heat that has engulfed the world has become a boost for the launch of the Koojack app. It is a personal guide presented in a futuristic video design. It is powered by a small battery and can be used comfortably. The temperature is about 25 ℃ for two cars on the same surface.
Inside the vest there are six blocks of thermoelectric effect – when one side heats up, the other side cools down. The blocks have fans installed along the same space of the vest. It is made of “breathable” polyester, the internal structure of the vest is optimized for cool air.
The Koojack vest comes in six sizes and can be worn with a friend and clothing. If you remove the risk, clean and even wash you. The fans are cleaned with a regular brush or damp cloth. The price of this universal model is $ 129.
Source: Tech Cult
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