″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.

Features
• ANT+ 2.4 GHz and Bluetooth® Smart wireless technology digital speed and cadence sensor
• For use with many other ANT+ and Bluetooth® Smart wireless technology enabled devices
• Use with Trek frames featuring DuoTrap S technology
• ANT+ and Bluetooth® Smart allow simultaneous use of Trip 300 and smartphone
• Includes aero wheel magnet and crank cadence band magnet″