Bicycle Chain Generator Charger for Universal Mobile Phone Iphone

It is a bicycle chain generators bicycle chain drive the gears to generate electricity and storage energy into lithium battery; can charge for cell phone MP3 / MP4 player small flashlights and other electronic products;Other Features Output interface: USB female socket with protection; Output voltage: DC 5V / Max. 1000mA; with the protection of over-voltage over-current over-temperature and short circuit; Generation capacity: pedaling frequency time and power output is proportional; Environmental and green; No longer worry about the energy leakage of your digital devices;Easily plug your USB cable so you can charge your devices; It also can be a emergency light ensures riding safety in the dark; There will be less than 5% of the self-discharge.by bicycle moving, almost not influence on the bicycle speed, The gears made of abrasion resistant plastic steel, and the bicycle chain don't wear out, Rainproof design, no need worry about water entry at raining days to the dynamo bicycle.Battery 1000mAh / 7.4V Lithium polymer batteryColour: blackMaterial: ABS + PCSize: 99*42mmLength 150cmPackage Contents:1 x motor1 x non-slip gasket1 x bundle of wire Belt1 x locking screw1 x manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.