Hand crank USB generator: The USB port can be used to charge your power bank, phone, and other small devices. This is a hand crank generator designed for manual operation. Camping ready generator: For camping, plug in the USB port to charge your phone or power bank. A convenient and practical manual power generator for offgrid use. Portable emergency power: The USB port can power a mini USB light, a fan, and other small items, making it a versatile emergency generator. Builtin heat dissipation: The hand generator includes a builtin heat dissipation function for safe and reliable operation. Portable and easy to carry. Use scenarios Camping trips: Use the USB port to recharge your phone or power bank when you are away from traditional outlets. Power outages: Keep essential small devices powered, such as lights or fans, during outages with the USB charging option. Travel or remote locations: Maintain access to charged devices by manually generating power on the go for phones, lights, or other USBpowered items.