Temperature Adjustable Electric Heating Sheet USB Heating Pad for Clothes Vest (With Switch) Condition: Item Type: Heating Pad Material: Composite Fiber Power Supply: 5V2A Power Supply Mode: USB Charging Adjustable Temperature: 45℃-65℃ Gear Setting: Red (High-Gear), Blue (Mid-Gear), Green (Low-Gear) Single Heating Pad Size: Approx. 160 x 250mm / 6.3 x 9.8in Scope of Application: Vests, clothes, belts, vests, waist protectors, shoes Features: Washable, lightly rubbed, insulated, no static electricity, resistant to pulling Note: 1. The heating cloth must be plugged into a 5V2A power adapter or a 5V2A power bank for heating to achieve the desired effect. If the output is not reached, the temperature control switch light will not turn on or the heating effect will not be obvious when the high temperature gear is used. 2. When using, please wrap the heating pad up and down with a thick cotton cloth such as a towel. This is to prevent the heat from being quickly dissipated. The temperature cannot be measured when placed on a table.