Features: Efficient Heating Technology: This USB powered heat pack utilizes RATIO film heating technology for rapid warmth in just three ticks, maintaining consistent heat for permanent comfort. Multiple Layer Security Security: Hard wearing triplicate center thermoregulation and septuple security, it ensures safe action by stopping overheating and potential hazards. Comfortable and Ergonomic Planumberebog: Produced with smooth ABS substance, it proposals a skin like touch and ergonomic grip, providing a pleasant and comfortable hand thawing knowledge. Lovely Night Light Featuremail: The constructed in night light includes a comfortable touch, making it a excellent partner for quiet evenings, offering both warmth and gentle lighting. Transportable and Rechargeablemail: Compact and thin with a Usb CREATE fast charging port, it exists simple carry and ensures your heat pack is forever ready for use. Specifications: People oriented Mengqu Hand Warm Treasure Product color White, cream Charging input 5V Product substance ABS+DC+electronic factors Heating temperature 65 55 45℃ Product size 111.6x76.3x44.7mm Package Includes: Hand Warm Bagx1 Instructionx1 Data Cablex1 note: Avoid using a inproper chargers to prevent battery damage or fire. At the same time, sure proper ventilation when charging and avoid overcharging for a extended period to prevent overheating of the battery. When using a electric heating hand warmer, we should carefully read and follow the usage instructions in the product manual to sure correct operations.