Power Energy Dynamotor For Charging, Testing, And Teaching, Cranked Generator. Product Details Small 12v electric generator No need for external power, water or wind can generate electricity, low noise and stable operation. Smooth surface hand-cranked generator, no rust, no obvious scratch. Compact size, light weight, easy to use. Smooth surface hand-cranked generator, no rust, no obvious scratch. Compact size, light weight, easy to use. Energy dynamotor can be used for backup lighting power supply, charging, testing, teaching, hydraulic generator, etc. Portable hand-cranked generator can be used as emergency power supply. It can be powered by human hand to supply various electronic products. We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.