SONY REON POCKET 4 RNPK-4T Wearable Thermo Device Sensing Kit This is Sony's latest wearable thermo device, the "REON POCKET 4." It allows for comfortable temperature management with cooling and heating functions. A dedicated sensor device and neckband are also included. There is some dirt and signs of use on the outer box and the main unit, but overall, it can still be used without any problems. Operation has been confirmed to be working without issue. Please check the condition in the photos. Box: 25 #SONY #REONPOCKET #REONPOCKET4 #Wearable #CoolingDevice