Features: Portable hand-cranked generator, can be used as emergency power supply. High power USB charging generator, strong power generation. Solid structure, low noise, stable working performance. The faster the hand crank speed, the greater the power. The maximum power is about 20W. Compact size, light weight, easy to use. It can be used in field operations, field trips, rescue operations, natural disasters, survival training, emergency communication, long-term power shortage, tourism, emergency electricity, etc. Specification: Condition: 100% brand new Material: Metal Weight: 758g/26.7oz Power generation speed: 2000 RPM Power generation: about 20W Corresponding voltage and current: 3V/ 6.6A, 5V/4A, 6V/ 3.3A, 9V/ 2.2A, 12V/ 1.6A, 15V/ 1.3A Package List: 1 x Hand-cranked Generator Note: 1. The output voltage of hand-cranked generator must be greater than the set voltage to stabilize the output set voltage. 2. Please be sure to adjust the voltage to 5V before using the USB port external appliances. 3. Please turn the generator clockwise and do not shake the handle at high speed when connecting the electric appliances less than 3W. All the items will be dispatched within one business day by Airmail after the payment is clear. Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday,weather,customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery. We appreciate your patience if you haven't received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel free to contact us via ebay message instead of leaving negative/neutral feedback or opening a dispute. We will do our best to solve any problem(resend or refund any missingitem). Customs duty is obligation and liability of citizens in yourresponsible for any tax and custom duty incurred. Generally, thedelay or failure delivery is sometimes caused by the policy of different customs. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties. duties,taxes,and charges are not included in the item price or shipping fee. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase. All disputes arising from the duties will be submitted to ebay for solution. Any questions, pls. contact us via ebay message or email us. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5" in very area. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better.We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.