HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Main Features Spd 61 Commodity DescriptionAAº Spd61 Speed Sensor Exquisite And Compact Accurately Capture Bicycle Speed Data Easy To Install No Mag - net Wireless Data Transmission Via Bluetooth Or Ant+ Protocol 260 Hours Long Battery Life Has Passed Ipx7 Waterproof Test. Specification Brand Model Number Spd61 Type Wireless Features High SensitivityWater ResistantAccurate Package Weight 50G Suitable For Mountain BicycleRoad BikeFixed Gear BicycleTouring BicycleCross-Country Cycling Package Dimension 150*100*50Mm Color Black Product Weight 10G You Will Receive Spd61 Sensor*1Rubber Band*2Manual*1I>