Features: 

1.with 7.4V/1900mAh intelligent and rechargeable Li-on batteries

 2.with bandage which can be tied on the calf

3.  with carbon fibre heating element

Advantages:

1, Can heat for long time

 Heated by powerful Li-on battery, the vest can heat for 4 – 8 hour

each time after being charged fully depending on the temperature you

request

2, Long lifespan

The battery can be recharged for more than 500 times. 

3, Light and easy to carry

  With a weight of only 240 g, the battery is very light and small.  You can put it into your pocket easily.

4,Adjustable size

 You can cut out insoles into the suitable size .

Product DATA:

1,Charger

Input voltage:AC100~240V 50/60HZ

Charge voltage:DC8.45~8.6V

2,Li-ion battery

Voltage:DC7.4V

Capacity :1900mAh

Benefit:

1.      Keep warm in winter time

2.      Therapy function

In addition to heating, the FIR energy has also therapy function.  By absorbing the energy eradiated by Far Infrared Ray, it will promote the blood circulation in your body and therefore accelerate the metabolism in your body, alleviate pain, eliminating inflammation, relieve pressure and promote good sleeping.. 

This kind of insoles have multifunction,can be used both in summer and winter,more  details waiting for  you,you just send your inquiry now,we will reply you  as soon as possible.