Here is another wearable fan that helps keep you cooler. The Tajima Clip-on Belt Cooling Fan Body 2 has a lightweight design. It sits around your waist and blows a breeze into your jacket. The fan uses a 2400mAh battery. It has low, high, and turbo settings. The battery lasts up to 5 hours.
This wearable cooling fan weighs 130g. You can find it on Japan Trend Shop.