CatEye Q3/Q3a USB Communication Kit
USB dongle to communicate wirelessly with the Q Series multisports computers and your PC. Upload training data to your computer and change the Q Series' settings.The e-Train Data software enables you to plot and graph your training data, including altitude, heart rate, cadence, and speed on your PC. The graph can be easily enlarged for detailed analysis. System requirement : Win 7/Vista/XP. 5