Feature: 1. Designed for use on the head, as well as small arms and other areas such as legs. 2. Three adjustable temperature settings to help relieve pain and fatigue in the head. 3. Power switch located on the USB cable for easy operation and on-the-go adjustments. 4. Constructed with nylon, polyurethane, and carbon fiber heating sheet for durability and reliable performance. 5. Rapid heating, flexible design resists breakage, low energy consumption, safe and convenient to use. Specification: Item Type: Electric Head Wrap Material: Nylon + Polyurethane, Carbon Fiber Heating Sheet Head Belt Size: Approx. 67 x 6 cm / 26.4 x 2.4 in Input Voltage: 5V 2A Heating Indicators: Red light indicates high temperature setting Green light indicates medium temperature setting Blue light indicates low temperature setting Power Supply: Compatible with standard USB power sources, including phone chargers, computer USB ports, or any USB adapter How to Use: Connect the USB cable to the headband and secure it around the head. Plug the USB into a power source. Press the control button to turn on—red light indicates high heat, press again for green (medium), again for blue (low), and press once more to turn off. Caution: Do not wear while sleeping to prevent potential overheating or discomfort due to prolonged use. Package List: 1 x Electric Head Wrap 1 x USB Cable Note: Please allow 1–2 cm variation due to manual measurement. Thank you for your understanding.