7.4V rechargeable battery heated pant liner underwear bottom

7.4V rechargeable battery heated pant liner underwear bottom       Main Features: 1,The heating element is made of carbon fibres offering reliability and durability, as well as medical properties by far infra red waves.  2,A safe and economic Li-ion battery provides a long time of operation of the heating system 3,A pocket for storing the battery offers you comfort of use every day 4,The heating element is located on belly and back , thanks to which your body will remain comfortably warm all the time 5,Our clothes'setting could show the battery capacity   Technical Data: 1,Material : Outer:95% polyester+ 5% spandex
2,Color:black
3,Mans' design
4,Temperature :45-65 ℃
5,Heating pad : two pieces on the knee / one on the waist Size:S-M-L-XL
6, Note:the control button of clothes on the left sleeves , the control button of pants on a small pad 7.4 V 7, battery power : 7.4V , 9W . working time :High-2 hours , Mid-4 hours ,Low - 4 hours
8,Battery type : Li-ion
9,Voltage:7.4 V
10,Capacity:2600 mAh Note : includes battery     More photos: