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Rechargeable Battery Operated Foot Warmer Heated Insoles
Two 1900Mah rechargeable Li-on Batteries
One pair insoles inside heating element
About 2 years
3-4hours(The first three times should charging more than 10 hours)
Within 3 months package can return back and send new products
One year maintenance free service
Will send out within one week.
1.Please charge more than 10 hours when you charging first 3 times
2.When charging,please trun on the battery power
3.Normally charging 3-4 hours
4.More than 3 months no use,should chargig more than 10 hours to re-use.