Neewer USB Hand Power Dynamo Torch Charger Cellphone MP3 PDA USB Hand Power Dynamo Torch Charger Cell phone MP3 PDA Built-in extra flashlight. Hand-winding charger with the interface of USB. Do not rotate too fast maintain 100-120 rotations per minutes, please no rollback. This item is 100% Brand New. Never used. It comes with 3 Months Warranty by Seller.