Product Specifications Fabric: Crystal Velvet Current 1A Power 5W Net weight of product: 136g Product Gross Weight: 189g Product size: 105*20cm Packing size: 40*25*3.5cm Packing specifications: 50*38*49cm, 50 pieces, 12.4kg 1* Waist Warmer Belt1* 1.5m USB Extension CableInstruction Manual USB plug-in use, the cable connecting to the belt is 20cm, and an additional 150cm extension cable is included Product Features 1.Hand-insertable design, warm hands/warm waist, serves dual purposes 2.Crystal velvet material, warm and comfortable, with an enlarged heating area 3.Three levels of intelligent temperature control, choose according to your needs, red light: 65℃Blue light: 55℃Green light: 45℃ 4.Can be washed directly with water, both hand wash and machine wash are possible. Make sure not to plug in the power before washing. Note: This product does not come with a power bank 5.There is a pocket that can hold a power bank 6.Comes with a 1.5m USB extension cable for convenient use, can be directly plugged into a computer or power bank without space limitations