Wahoo Fitness products wirelessly connects your smartphone to fitness sensors. With Wahoo Fitness, your phone, the best fitness Apps and real-time activity stats are all in the palm of your hand - or on your arm, or mounted on your bike. Wahoo Fitness products wirelessly connects your smartphone to fitness sensors. With Wahoo Fitness, your phone, the best fitness Apps and real-time activity stats are all in the palm of your hand - or on your arm, or mounted on your bike. smart phone. smarter athlete. Wahoo Bike Pack for iPhone Turn your iPhone into a full featured bike computer! The Wahoo Bike Pack wirelessly connects your iPhone to any ANT+ bike sensor so you can get all of your favorite cycling data on your iPhone, including speed/cadence, power (wattage), and heart rate. The Wahoo Bike Pack features the Wahoo Bike Case for iPhone and a wireless Speed and Cadence sensor. Your iPhone can be mounted on your bike's handlebars or stem in a protective and water-resistant case. Also included in the package is the Wahoo Fitness App for iPhone, which is perfect for turning your iPhone into a cycling computer. The Wahoo Bike Case for iPhone works with all types of bikes - road, mountain, e-bikes, and hybrid. The Bike Case encompasses Wahoo Fitness sensor technology along with a water resistant protective barrier for your iPhone. You can now have your iPhone read data from any ANT+ sensor - bike speed and cadence, bike power, and heart rate - now your iPhone is a bike computer! WILL NOT FIT IPod TOUCH! Wahoo Fitness wirelessly connects your iPhone to your favorite ANT+ fitness measuring devices. With Wahoo Fitness, your phone, your favorite playlists, the best fitness Apps and real-time activity information are all in the palm of your hand - or mounted on your bike, or in your pocket. Features built in ANT+ radio transceiver with support for all current and future ANT+ sensors fits iPhone 3G, 3GS, 4, 4S from all carriers! ships with custom rubber liners to easily adapt between phone types Wahoo Fitness Powered supported by most of the leading iPhone fitness Apps water and shock resistant bike mount with quick release for Case/semi-permanent mount attachment to bike. Adjustable portrait or landscape orientation microUSB port microUSB port for charging/data connection with tethered rubber plug when not in use fully accessible/functional touch screen access universal mounting rail for bicycle mount and auxiliary battery optional auxiliary battery Wahoo Fitness rail mounted 2.3 AmpHour battery (1.5x that of the iPhone battery) or any auxiliary battery with microUSB plug compatible (sold separately) sends and receives signals up to 10 feet unobstructed Includes 1 Wahoo Bike Case for iPhone (with built-in ANT+ radio tranceiver) 1 Premium Speed and Cadence Bike Sensor