Garmin ANT+ USB Stick
Garmin's ANT+ USB stick plugs into your computer's USB port to wirelessly transmit your activities to Garmin Connect and Garmin's Training Center. It automatically receives your activity data when your compatible ANT+ Garmin device is within range.
ANT+ is a wireless technology that allows your monitoring device to seamlessly communicate with other ANT+ products such as speed sensors, heart rate monitors, power meters, and foot pods that track running/walking progress.
Fore runner 910XT