Bundle includes: Speed and cadence sensors (ANT+/Bluetooth Smart) Tickr heartrate strap (ANT+/Bluetooth Smart) The Elemnt is an easy to use cycling computer with a large contrast display that lets you read easily the inflo with just one glance. With Bluetooth Smart and ANT+ dual-band technology, ELEMNT BOLT pairs seamlessly with all of your cycling sensors. The free ELEMNT companion app allows you to set up your data fields, customize profiles, track performance, and share ride data effortlessly. Plus, programmable LED QuickLook Indicators provide a quick way to see if you're on pace with important performance metrics like speed, heart rate, and power. It is designed for performance and engineered for simplicity.