Features: 【High-Efficiency Fast Charging】100W fast charging technology significantly reduces charging time. 【Durable Construction】Crafted from ABS component, offering excellent impacts resistance and wear-proof performances. 【Modular Design for Easy Assembly】case box components supplied, excluding the battery cell which must be sourced separately. Simple assembly not requires specialised tools. 【Wide Compatibility】Supports charging for multiple devices including smartphones, tablets, and laptops. 【Lightweight and Portable】Compactly design for easy carrying, suitable for use in any setting. Specifications: Component: ABS Product model: K81 Product battery: for 21700x4 (excluding battery) Product size: 153x55x34mm Color：Black/Blue/ Gray Optional Technical parameters: Supports 100W fast charging ,compatibles a variety of input voltages and adapts to the power standards of different countries and regions. Package Includes: 1 Set of mobile power supply (excluding battery) note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution