USB Electric Blanket 3 Heat Settings Wearable Electric Blanket Multifunctional Soft Cold Protection Home Office Back Knee Warmer Feature: 1. Warm & Comfortable: Double-layer thickening insulation, suede fluff density uniform, delicate touch, fluffy, warm and breathable. 2. 3 Temperature Adjustment: 3 temperature zones, back and shoulders are hot, 3 temperature adjustment temperature is safe and comfortable. 3. Multifunctional Shawl: When working in the cold winter, you can use as shawl to keep your body warm. There are many other uses. Such as knee rest. 4. Power Supply: USB power bank can be used outdoors, 2A current USB adapter can also be used indoors, and a 1.5-meter-long USB extension cable can be used for 220 power supply. 5. Satisfaction Guarantee: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. Specification: Name: USB electric heating blanket Style: gray grid, red Material: Flannel on the front, Sherpa on the back Voltage: 5V Current: 2A Gears: three gears: high-medium-low Weight: about 360g Size: about 140x80cm/55.12x31.50inch Instructions: The power supply shall be the 5V 2.1A output USB socket of the regular mobile phone charging bank, or the special adapter with 5V 2A or above output requirements shall be used. The zipper is opened into a battery pocket, with a USB power socket inside, which is inserted into the charging bank to ensure reliable insertion. Press and hold the switch button of the controller for 3 seconds to turn on, the red display lights up to start heating, press continuously to adjust the temperature gear, red is high-grade, blue is mid-grade, green is low-grade, (red, white and blue switch red high-grade white mid-grade blue color low) long press the switch button to close. Included : 1 x USB electric heating blanket USB Electric Blanket 3 Heat Settings Wearable Electric Blanket Multifunctional Soft Cold Protection Home Office Back Knee Warmer Warm & Comfortable: Double-layer thickening insulation, suede fluff density uniform, delicate touch, fluffy, warm and breathable. 3 Temperature Adjustment: 3 temperature zones, back and shoulders are hot, 3 temperature adjustment temperature is safe and comfortable. Multifunctional Shawl: When working in the cold winter, you can use as shawl to keep your body warm. There are many other uses. Such as knee rest. Power Supply: USB power bank can be used outdoors, 2A current USB adapter can also be used indoors, and a 1.5-meter-long USB extension cable can be used for 220 power supply.