Product information:
Material: CottonColor: greyBattery: 3.7V 4400 mAhCharging time: 3 hoursFever duration: 8-14 hoursTemperature: 40-60, three gears adjustable
Packing list:
A pair of socks*1, battery*2 ,charging cable*1
Secure payment
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Refund in case of loss of the parcel
Refund for non-delivery
Refund if the item is damaged