Here is a smart wearable device that keeps you cool and plays your music. The Hvsaio comes with Bluetooth 5.0 connectivity. It has a speaker and microphone, so you can use it to take calls. This wearable air conditioner features 360-degree airflow.
This gadget comes with a heating system too. It can cool you down 8C lower than the ambient temperature. It also has max temperature of 45C. It lasts up to 12 hours on battery.