BT Fitness and Training Bicycle Sensors with Cordless Data Transmission for Measuring Speed, Cadence, RPM and More

BT 4.0Cordlessly Measures Bike Speed, Pedaling RPM and MoreAccurate Measurement and Cordless Data TransmissionDownload the App, 'ALA COACH+' Free via the 'App Store'Also compatible with other training and fitness APPs on the marketWorks for iOS Devices Only Quickly and Easily Attaches to Your BicycleProvides Instant Cordless Feedback and DataSmall and Non-Obtrusive Size Will Not Cause Damage or Interfere with Biking PerformanceImprove Your Performance and Experience by Making Your Training More FunBattery Required: 1 x Button Cell (Type: CR2032)Sold as: UnitWeight: 0.25 lbs.Item Dimensions: 6.11" x 3.74" x 1.18"Item Weight: 0.25lbs