Rider 15 Bicycle Computer w/CadenceSmart Cadence Sensor applies both ANT+ and Bluetooth technology. It wirelessly transmits your cadence data to cycling computers and smart phones. With no magnets and exposed parts to line up, it is much easier to install. In a new category of smart bike computers that sits perfectly between a traditional bike computer and a smartphone app, Rider 15 comes with built in GNSS receiving capabilities for improved accuracy plus an all new Heading feature