Wahoo Fitness Stride Cadence & Speed Sensor for iPhone 3, 4 & 4S
Smart phone. Smarter athlete.
Collect cadence and speed data while running.
Attach to the laces of your shoes and pair with the Wahoo Key or Wahoo Bike Case to start analyzing your running data. This product will not work with your Apple&tarde; mobile device unless you have either the Wahoo Key or the Wahoo Bike Case. Batteries are included.
Dimensions: 1"L x 0.5"W x 2"H
Weight: 0.5 lbs.