Sony’s latest idea is making heat waves and cold weather more bearable on the go. The company is crowdfunding a gadget called the Reon Pocket, a portable, card-sized Bluetooth device that functions as both an air conditioner and heater.
It operates on thermoelectric cooling, whereby electrical currents are used to absorb or generate heat. Users can get instant cooling or heating by slipping it into a special undershirt with a pocket at the base of the neck and activating the device through an app.
Spec-wise the product is pretty impressive. It supports iOS and Android, has a battery life of 24 hours and a charge time of 2 hours, and it uses USB-C. Since it’s so small and weighs a mere 85 grams (3 ounces), it’s not that noticeable even if you have to wear a special shirt to use it.