Feature:
* Built-in 3 Heat- pads Keep You Warm At the Press of a Button
* Fever Temperature Control Function Push-button 3 gear
1 Stage: Red LED Color
2 Stage: White LED Color
3 Stage: Blue LED Color
* Highest Fever Temperature: About 60 degree
* Can Powered by USB Interface

Note:When you connect it with the power bank, you need to press the button on the vest 3 seconds to turn it on

Size:
M Bust 96cm/37'';shoulder 36cm/14''
L Bust 100cm/39'';shoulder 38cm/14.8''
XL Bust 104cm/41'';shoulder 40cm/15.6''
XXL Bust 108cm/42.2'';shoulder 42cm/16.38''

Package include:
1x heated vest