The device is controlled using a smartphone that allows users to adjust their body temperature. After performing hundreds of simulations, Sony claims the device can lower the wearer’s body by 23 degrees or raise it by about 14 degrees.
Sony claims the Reon Pocket only weighs about three ounces, making it easily concealed inside a “neck pocket,” which “can be worn without a sense of incongruity in appearance.” The rechargeable device will cost around $120 and be available only in Japan when it goes on sale next year, Sony said.