All you need for cycling data, all together at once! The Wahoo RPM Speed and Cadence sensors are both a sleek, wireless, and magnet-less solution. Each mounts easily to your bike and the Bluetooth Smart and ANT+ duel band technology allows you to connect and display data on both smartphone and bike computers.Product details:Dual Band TechnologyWireless ConnectionSleek, Lightweight DesignCadence MeasurementPeloton iOS CompatibilityTwo Bike Mount OptionsShoe Mount OptionHub MountVisible ConnectionReplaceable BatteryUniversal FitIncludes:or RPM CadenceRPM Cadence sensor CR 2032 Battery (installed)Rubber Mounting OptionZiptiesShoe Mount Option3M double sided tapeQuick Start GuideImportant Product Info GuideFor RPM SpeedRPM Speed sensor CR 2032 Battery (installed)Hub Mounting OptionQuick Start GuideImportant Product Info Guide