it's using a rechargeable battery providing a temprature ****5
degree to keep you warm . The temprature can be easily to reach *0
degree within *0 second.The battery service ***0hours per run.
battery size : 5x5x2 cm
service time :***0hours
temprature :****5 degree
eletric line is made of carbon fiber which is soft and comfortable
while wearing.The carbon fiber has infrared ray radiation which
helps healing your body while keep warm.
