... High Speed and Steady Power Input 4. Easily Fixed On Bike Wheel 5. OEM/ODM 1. Specification For Bicycle Mobile ... this device to charge your mobile. Just with a bike, you can make it. Low carbon Eco-friendlyEnergy savingDurable ... as a holder to fix the phone to the bike. When the kit is installed, the dynamo uses ... kinetic energy to electric energy. Easily Fixed On Bike Wheel,cute mobile phone charger,