MIDIAN 3.7V 2500MAH Heated Scarf Thermal Blanket Heating Sock Battery Pack With Input 5V 0.8A Output DC3.7V 0.8A

Washable] The vest comes with a USB cable for connecting the battery. Connect and use a 5V / 2A USB output rechargeable mobile battery. * Note: Mobile battery is not included. It is hand washable and can be used cleanly forever.
[Various uses] It can be used in various situations such as golf, mountain climbing, fishing, physiology, walking, bike touring, watching sports, commuting to school, and outdoor work. This down jacket has a slim fit.

Air-conditioned clothes that you can't let go of]
1. Air-conditioned clothes are cool and convenient, but they don't affect your work, so you shouldn't miss them in the summer.
2. Comfortable work under high temperature: When working in an environment where air conditioning is difficult, you can improve work efficiency by competing with the sensible temperature, and it is also effective as a countermeasure against hot conditions.
3. The fan creates air in the clothes to prevent heat buildup, vaporize sweat and expel the heat on the surface of the body to artificially cool down the temperature inside the clothes.
[service]
Before shipping the product, we have a specialized team and carry out sufficient inspection, but if there is any problem, we will contact you immediately by e-mail and we will respond again as soon as we confirm it. We can do our best to find a satisfying solution for our customers.