I don’t know when it started, because the weather was too hot, or because of the need for USB charging technology, Hong Kong people began to bring portable fans commonly known as “banana fans” during Hot Summer. To be honest, if the surrounding environment is very hot, the “banana fan” blows only hot air. Sony Hong Kong introduced the RENO POCKET wearable heating and cooling machine, which was originally only launched in Japan, and it was the third generation as soon as it came out. It is cheaper than the first-generation parallel products that were sold in big stores. The…