... fiber,dyla 3.temperature,40-45 namepromotional fashion far infrared heating vestlithium battery voltage7.4vpower8.8wtemperature40-45colorblack,as customer ... fiberfunchionkeep body warm all dayMOQ100pcs 1)Release Far-infrared wave with wavelength of 4-14 um,to ... heating materials is carbon fibre, which releases the far infrared radiancy promote the blood circulate; eliminate the inflammation ; ...