b&m E-Werk mobile charger via hub dynamo

b+m E-Werk Bike-mobile power supply for electronic devices via hub dynamo Universal use: Powers mobile phones, GPS, MP3 players, cameras, etc. and charges batteries very quickly (from 15 km/h like a mains device). Easy to mount on the bicycle frame. Splash-proof. Very high performance: Up to 16W, high efficiency electronic regulation, voltage (2.8 - 13.3V) and current (0.1 - 1.5 A) adjustable Connection options: USB connection and freely configurable cables for different devices. With plug for SON and Shimano hub dynamo. Waterproof cable glands Comprehensive mounting kit