Digital USB Graphene Heating Stomach Heating Belt

Product information:
Product Name: Smart massage waist warmer
Input voltage: 5V/1A
Battery capacity: 2000/4000mAh
Temperature: 37~60 ℃
Product material: ABS flannel
Product Size: 190*34.4 * 95.3mm
Input interface: Type-C
Battery Type: lithium ion battery
Charging duration: ≥ 2.5 hours