About this item: Model number: CX12 Structural material: ABS+aluminum alloy Number of fan blades: 7 pieces Power: 11W Refrigeration chip: TEC Interface type: Type-c Input voltage: 5V/2A Product weight: approximately 120 grams Product weight with packing: approximately 190 gram Fixed method: magnetic attraction Dimensions: 54mm * 69.5mm * 44mm Battery Capacity: 2000mAh