Power Case only; other accessories shown in the picture are not included. Note: 18650 batteries are not included in the package; you need to separately. Use only flat 18650 cells (positive electrode is flat). Please pay attention to the orientation of the positive and negative poles. Key benefits and features Reliable portable power: Designed for enthusiasts and frequent travelers who need dependable power for multiple devices on the go. Converts cell collection into a power source: Transform your collection of 18650 batteries into a powerful, readytouse power source with this Power Case. No welding required: Enables building power sources without welding, simplifying setup and maintenance. Fast charging: Features fast charging technology for rapid recharge of the stored cells and connected devices. Clear compatibility and use: Specifically compatible with flat 18650 cells; keeps cells organized and protected during transport. What it gives you Function: A compact, portable Power Case that securely stores 18650 cells and provides power on demand. Compatibility: Supports 18650 batteries with a flat positive terminal; ensure correct polarity during use. Size and portability: Designed for travel and frequent trips, providing power where traditional outlets are unavailable. Performance: Fast charging capability for quick battery turnaround; reliable power for multiple devices. Use scenarios On the road or in travel: Keep multiple devices charged during long trips, flights, or daily commutes. Outdoor activities and fieldwork: Maintain power for cameras, lights, GPS, or other essential devices in remote locations. Emergency backup: Have a portable power source ready for power outages or sudden needs at home or on the go.