As oppressive temperatures sweep the world this summer, you don’t need to abandon air conditioning once you leave the office. Sony is developing a personal “air conditioner” you can keep in a special pocket to keep you cool during the hot summer months.

The “Reon Pocket” is a wearable air conditioner controlled via a smartphone app. It slips into a pocket beneath the collar on the back of a custom dress shirt and works with the same type of technology that makes refrigerators keep their cool. Wearers can control the temperature on their phones or allow the device to self-adjust to external temperatures.