Sony SONY REON POCKET PRO Sensing Kit RNPK-P1T Wearable Thermo Device The main unit has been used a few times. Approximately 5 hours of use. Sensing kit (tag) is unused. I confirmed the operation of both heating and cooling before listing. Although the usage time is short, there may be fine scratches as it was stored in a bag without a case. Neck cooler Electric warmer