Key benefits Safe design: 5V ultralow voltage reduces any risk of leaks or electric hazards and provides safe warmth without waterbased heating. Quick and lasting warmth: maintains steady heat for extended periods and reaches the target warmth in 35 minutes, helping you unwind after a long day in cool environments. Portable USB heating: USBpowered operation eliminates the need for a wall outlet and works with portable power sources such as power banks and car chargers, enabling heat wherever you go for winter adventures or business use. Skinfriendly materials: exterior fabric options of plush coral or flannel offer a soft, skinfriendly feel that helps prevent dryness or irritation while keeping your feet comfortably warm. Specifications and materials External material: plush coral or flannel Voltage and power: 5V lowvoltage, USBpowered Compatibility: suitable for use with power banks and car chargers Use scenarios At home on cold evenings: relax with steady foot warmth while watching TV or reading. After outdoor activities or in cool environments: unwind with reliable heat after a hike, commute, or a day in airconditioned spaces. On the go for winter adventures or business use: connect to a power bank or car charger to keep feet warm during travel, camping, or business trips.