A portable USB bottle warmer is a convenient gadget designed to warm baby bottles or other beverages using USB power. 
It typically consists of a heating element and an insulated sleeve to retain heat, making it ideal for use on-the-go, in the car, or even at work. These warmers are especially useful for parents who need to warm up milk or formula while traveling or when away from a traditional heating source. 
It can be powered by a USB port from a car, laptop, power bank, or any other USB-compatible device.
Highlight:
- Washable
- Convenience To Carry
- Safety voltage 5v
- Safe and easy to use
- Good heat preservation effect
- Heat preservation- keep the bottle warm in everywhere
- Multi functional- Heating and warming
 
Specification:
Material: Crystal Velvet Fabric & Cotton
Size: 29cm x 14cm
Constant Temperature: 42 degress
Heating principle: carbon fiber resistance heating (pure physical principle)