Speed and Cadence Sensor 2-in-1 Cycle Speed Cadence Sensor ANT+ BT Wireless RPM Sensor for Bicycle or Spin Bike IP67 Smart Bike Sensor for Accurate Speed and Cadence Measurement  This smart bike sensor is designed to measure your Cycle speed and cadence while riding. It connects to your devices via Bluetooth or ANT+ and is compatible with iOS, Android phones, sports watches, and Cycle computers. Features: 2-in-1 Measurement: Measures Cycle speed or cadence, 120km/h for speed or 300rpm for cadence. Connectivity: Connects to devices via Bluetooth or ANT+. LED Indicator: The LED indicator shows the working mode - red for speed, blue for cadence. Waterproof: With an IP67 rating, the sensor is waterproof and suitable for all weather conditions. Long Battery Life: The CR2032 battery lasts for a year with 1 hour of use per day. Specifications:  Size: 38x30x13.8mm / 1.5x1.2x0.54in  Weight: 9g / 0.32oz  Waterproof: IP67  Battery: CR2032 3V 210mAh Battery Life: 1 year (1 hour of use per day)  Transmission Distance: Bluetooth - 30m / 98.4ft, ANT+ - 20m / 65.6ft Package List:  1x 2-in-1 Cycle Speed Cadence Sensor  2x 35mm Silicone Ring  2x 50mm Silicone Ring  2x Silicone Pad  1x CR2032 Battery