**** Quick Operation ****
Firstly,pair with RunPro app for connecting to heart rate monitor sensor(s).Please be noticed that the mobile devices should support Bluetooth 4.0 protocols.
Secondly,select the screen for running (RUN), heart rate monitor, or cycling (Bike) to see the information you feel the most important during your workout.
Works with iPhone 4S or later having GPS location updates capability.
Please Note: Continued use of GPS running can dramatically decrease battery life.