* Bluetooth protocol to connect with your iPhone, iPad, or Android device* Transmits power, cadence, speed, and distance* Power data includes: TSS, nPower, iFactor, mean maximal power and time-in-power zones* Upload workout data to popular training sites or via e-mail in.pwx, .tcx, .csv, .gpx, or.wf format* Only compatible with Kinetic fluid trainers