Manual Hand Generator, Portable Power Hand-Cranked Generator Usb Charging Product Features ??Long life?--Easy to generate electricity; Light weight; Miniature metal casing, anti-corrosion, anti-oxidation, prolong product life; ??Fluctuation speed is fast? - The faster the oscillation speed, the larger the power generation, the faster the oscillation speed, the higher the generator voltage, the larger the power generation. ??energy saving? - The generator is very energy efficient, does not require unnecessary charging, and saves electricity costs. It is very environmentally friendly and safe to use at home. ??Performance stability? - The output voltage of the manual generator must be greater than the set voltage to stabilize the output. Robust construction, low noise and stable performance. ??Application? - USB Generator can be actively used in the field, field operations, field trips, rescue operations, natural disasters, survival training, emergency communications, long-term power shortage, tourism, emergency power supply and other fields. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!