Features: Experience rapid charging with our advanced bidirectional fast charging technology, significantly reducing charging time for your devices, making it an essential fast charging power banks for quick power boosts. Crafted from high strength aluminum alloy, this power banks features outstanding durability, superior heat dissipation, and a small , portable design for easy carrying and extended battery life. Ideal for busy professional, frequent travelers, and families, this portable chargers caters to users seeking stable power solution for their mobile devices. Perfect for outdoor adventures, long journeys, or daily commutes, it ensures your smartphones and tablets stay charged in various scenarios, such as during hikes or business trips. With intelligent compatibility for multiple USB devices and built in safety mechanisms to prevent overcharging, over discharging, and short circuits, this aluminum power banks offer secure and versatile charging for all. Specifications: Component : aluminum alloy Product model: 22.5W mobile power supply set Battery capacity: 30000mAh (excluding battery cells) Battery model: 21700x6 (excluding battery cells) Size: about 110x70x48mm/4.33x3x2inch Battery display: LCD digital display rate input: 5V/3., 9V/2.2A, 12V/1.67A PD20W Package Includes: 1 set Power banks Case note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.