men's electric svels vt, outdoor usb heating et, fishing, hunting, zone 11, winter, Black;white

note:
the product do not include external batteri.
he needs a 5 volt power supply. 2a 20000 ah or higher.
we are asian size, 2-3 siz smaller than european size.
choose the right size according to our size
prs and hold the button for 3 seconds at the same time, the two buttons turn on the work at the same time, and only one button turns on the area heating
dimension information:
our size chart shows asian siz.
usually
european size xs = asian size m
european size s = asian size l
europ