Charge your mobile phone or any digital devices at any places and at any time!
Portable Hand-Cranking Dynamo USB Charger transforms mechanical energy into electrical energy making it possible to charge for emergency situations without needing the costly energy. This is very useful and convenient to use.
Portable Hand-Cranking Dynamo USB Charger is suitable for outdoor activities, good emergency power supply for mobile phones and other digital devices. Very portable because of its mini size and lightweight design.