iBike 6001 POWERHOUSE for iPhone 4S/4/3GS/3G and iPod Touch The PowerHouse system comes with a rugged, shockproof and waterproof case to protect your iPhone or iPod touch. Patented electronics that perform precise cycling measurements, including power; a universal mount; and the iSlim plan already installed. The iBike POWERHOUSE incorporates the perfect blend of the latest advances in measurement science, exercise science, and computer science to help you reach your goals. The iBike POWERHOUSE's patented power measurement sensors accurately measure your effort at every instance of your ride. So your iBike POWERHOUSE can make sure you're always doing precisely the right exercise at the right pace. Fitness assessments are performed by your iBike POWERHOUSE periodically, after which your plan will adjust automatically to reward you for your progress and help you reach your goal A.S.A.P. The PowerHouse plan has been designed by Hunter Allen, one of the world's top experts in coaching endurance athletes.