Connect Bluetooth Smart® compatible devices to all of the data available from the DuoTrap S sensor to tackle all your on the bike wireless needs.ANT+ 2.4 GHz and Bluetooth® Smart wireless technology digital speed and cadence sensorFor use with many other ANT+ and Bluetooth® Smart wireless technology enabled devicesUse with Trek frames featuring DuoTrap S technologyANT+ and Bluetooth® Smart allow simultaneous use of Trip 300 and smartphoneIncludes aero wheel magnet and crank cadence band magnetPlease note: DuoTrap S sensors are only compatible with some models. 2015 models: Emonda SLR, Emonda SL, 720, FX Bikes (not 7.7), Dual Sport, Neko, Allant.For all other 2015 models and models prior to 2015 please use DuoTrap 426618