Doshisha Tempo LOOP Cool & Hot Device, Dual Power Source (Rechargeable/USB), Star White

Cool & Hot Plate: "Cool in summer" and "Warm in winter" - Suitable for all seasons. By placing a Peltier element plate on the back of your neck, it helps regulate your body temperature. Cool & Hot Plate: "Cool in summer" and "Warm in winter" - Suitable for all seasons. By placing a Peltier element plate on the back of your neck, it helps regulate your body temperature. Dual power source support (rechargeable/USB). Can be powered by a mobile battery. Charging time: Approximately 5.0 hours (starts charging from empty battery/room temperature 25°C). Usage time: Automatically shuts off approximately 60 minutes after the last power button operation. Cool mode: Strong: Approximately 3 cycles, Weak: Approximately 6.5 cycles. Warm mode: Strong: Approximately 4 cycles, Weak: Approximately 5 cycles. *1 cycle = 60 minutes. Plate temperature: Cool mode: Weak: Approximately 22°C, Strong: Approximately 18°C. Warm mode: Weak: Approximately 36°C, Strong: Approximately 40°C. Recommended operating temperature: 5°C to 35°C USB cable length: Approximately 0.7m