The Oraimo PowerBox 400 Vision is a high-capacity power bank with a 40000mAh battery, offering 22.5W fast charging capabilities. It supports both PD (Power Delivery) 3.0 and QC (Quick Charge) 3.0 for efficient charging. It features an LED screen to display the power status, allowing you to monitor the remaining battery percentage accurately. The device includes multiple outputs, enabling you to charge several devices simultaneously. It's designed for long-term power backups, suitable for travel or emergency power supply, and comes with a warranty, although specifics on warranty length may vary.