Nonmetal conductive Far Infrared USB Hot Wrap

Portable Nonmetal Conductive Far Infrared Hot Wrap for your body.
Item 1.Waist
Item 2.Knee
Item 3.Wrist
Features:
a.More effective - 90% high emission of far infrared
b.More reliable - operate with direct current
c.More economic - cost only pennies a day
d.More comfortable - soft as it has never exist
e.More convenient - home, office, car and outdoor
f. More healthy - no metal inside, less electromagnetic wave

Specification :
a.Operation voltage : 5VDC
b.Power : 4.5W ; 2.5W
c.USB 2.0 connector
d.3 sizes fit for different body positions

Optional Accessaries :
a.100 ~ 240 VAC to 5 VDC adapter
b.Car charger
c.USB 2.0 extend cable
d.Li-ion battery (large)
e.Li-ion battery (small)
f.Ni-MH rechargeable battery AA battery case

OEM are also welcome!! OEM Min order: 
Item 1.Waist 2000sets
Item 2.Knee  2000sets
Item 3.Wrist  4000sets