As record-breaking temperatures continue to sweep across the United States, demand for personal cooling solutions is accelerating. Following the introduction of handheld cooling products from major air-care brands, Sony is now bringing its wearable climate-control technology to the US market.
The Sony Reon Pocket Pro Plus, a neck-worn heating and cooling device that has been available in Japan since 2019, is set to begin shipping in the United States this July. Designed to provide localized temperature control, the wearable offers both cooling and warming functions in a compact form factor intended for discreet everyday use.
Weighing approximately 8.7 ounces, the device is worn around the neck beneath clothing, positioning a stainless-steel thermal plate against the upper back. Users can manually adjust temperatures between 41°F and 104°F through a companion app available on Android, iOS and WatchOS devices, or directly through controls located on the unit.
A key feature of the Reon Pocket Pro Plus is its intelligent temperature management system. Through a combination of onboard temperature and humidity sensors and an external environmental sensor, the device can automatically regulate its cooling or heating output based on surrounding conditions and user preferences. The external sensor, which can be attached to a bag or belt loop, monitors ambient temperature and humidity and relays this information to the mobile application.
The wearable also includes physical controls for switching between cooling, heating and smart modes, allowing users to adjust settings without relying on a smartphone.
Sony’s technology is built around a Peltier element, a semiconductor-based thermal module capable of generating cooling on one side and heat on the other when powered by an electric current. To maintain efficiency, the device incorporates a high-capacity fan, vapor chamber and heat-dissipation system that helps manage excess heat generated during operation.
In testing, the Reon Pocket Pro Plus demonstrated rapid temperature changes, with users able to feel immediate differences when switching between heating and cooling modes. While the system is not intended to cool the entire body, the localized cooling effect on the upper back can provide noticeable relief in warm conditions.
The device is secured by an adjustable neckband designed to keep the thermal plate in contact with the skin. Interchangeable extension tips allow users to customize the fit, while different vent covers accommodate a variety of clothing styles, including collared shirts and T-shirts.
Although the wearable remains relatively discreet, the rear air vent extends above the collar line and may release warm air when operating in cooling mode, depending on environmental conditions. The lightweight design contributes to overall comfort, though some users may find the plastic neckband less comfortable during extended wear.
Sony positions the Reon Pocket Pro Plus as a solution for everyday outdoor activities such as walking and hiking rather than high-intensity exercise. The device performs most effectively when maintaining consistent contact with the skin, making it better suited to moderate movement than vigorous physical activity.
With extreme weather events becoming increasingly common, Sony’s US launch highlights the growing market for wearable technologies designed to improve personal comfort and help users adapt to changing environmental conditions.

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