Feature: 1. Stable Practicability: USB charging and can be used with rechargeable batteries, chargers, computers, which is more convenient and safer to use. 2. Reliable Performance: This heating pad is made of non woven fabric, which is comfortable and soft, and can be washed, bent, kneaded and even folded for use. 3. Easy Using: Portable heating pad is safe and easy to use, the temperature inside the jacket will continue to rise as the heating time increases, usually reaching the desired temperature minutes in about 10 minutes. 4. Wide Application: Suitable for shoulder, neck, lumbar spine, back, abdomen, waist, seat cushion, pet bed heating, etc. Add a touch of warmth to your winter. 5. Advantages: Even heating and excellent heating efficiency, lightweight and durable, it is easy to carry in winter outdoor camping or other activities to meet your different needs. Specification: Item Type: USB Electric Cloth Heater PadMaterial: Non woven fabricUsage: Mainly used for warm shoulder, neck, waist, back, abdomen and cushion or pet bedVoltage: DC5V Size: Approx: 100x75mm/3.93x2.95in . Package List: 5 x USB Electric Cloth Heater Pads Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.