2 Area Single Control USB Electric Heating Undershirt Intelligent Warm Vest, Size: M(Blue)

1. 2 heating zones and 3 temperature settings: The carbon fiber heating element generates heat on the collar and back; 3 heating temperature settings are available with the press of a button.
2. USB charging: Connect a 5V 2A power bank (this product does not include a mobile power bank). During cleaning, the external battery must be removed.
3. Safety and health: Far-infrared heating only requires 5V, which is far lower than the human body safety voltage of 36V.
4. Large area heating: The electric heating cotton jacket has multiple built-in heaters, which have the function of promoting blood circulation and removing blood stasis. It can warm the stomach, back, waist, and abdomen and promote blood circulation.
5. Suitable for outdoor skiing, winter fishing, mountain biking, cycling, camping, snow hiking, hunting, outdoor assistance, daily office, etc.
6. Comfortable and skin-friendly, soft to the touch, and with better warmth retention. It can help you spend the winter easily

Parameters:
1. Material: polyester fiber
2. Filling: cotton down
3. Power supply interface: USB
4. Power supply: 5V/2A mobile power supply (not included)
5. Function: warm, waterproof, cold-resistant
6. Applicable age: adult male/female
7. Temperature change: (manual adjustment)
-Warm: 45 degrees Celsius (red light)
-Comfortable: 35 degrees Celsius (white light)
-Energy saving: 25 degrees Celsius (blue light)

Tips:
1. Do not connect the mobile charger if it is not used for a long time.
2. Do not use hot water or strong acid detergent.
3. Do not use electricity on wet clothes, and turn off the power when the fabric is wet.