EXERCISE BIKE WITH DYNAMO & POWER STATION 1.Power comes from your riding. 2.The production is a good disigned for exercise, energy-saving and environmental protection. 3.The power station is necessary appliance for fishing, mountain climbing, camping and emergency. 4.The power bike can charge for battery charger,mobile phone,CD player, ipod, MP3,MP4,PDA, PS3,digital camera, shaver, gameboy, mini speaker, notebook, digital video, blue tooth earphonem, electric fan, desk lamp and other electric appliances. (Under 100 watt)