Feature: 1. WIRELESS CONNECTION: This sensor can be wirelessly connected to your phone or bike computer through Bluetooth 4.0 and ANT+, supports for IOS and for Android. 2. REAL TIME TRACKING: Use this sensor on your favorite indoor cycling platform to track and catch real time speed, rhythm, and distance, the transmission range needs to be within 3 meters. 3. WIDE COMPATIBILITY: The sensor can be used in conjunction with free applications, supported for IOS device including for IOS 4S and later versions, for IOS tablet 3rd generation and later versions. 4. UNIVERSAL USE: Bike speed and cadence sensor is suitable for most bikes and frame sizes, ensuring a wide applications. 5. EASY TO INSTALL: The bike speed and cadence sensor is lightweight, equipped with rubber band and cable tie, making it easy to install. Specification: Item Type: Cadence and Speed Sensor Material: ABS Model: SC 01 Power Supply Method: 1 x CR2032 Button Battery (Not Included) Transmission Range: <3 Meters (9.9FT) Waterproof: Splashproof IPX4 Working Temperature: -10℃ to +50℃ APP: Support for IOS and for Android User Friendly APP Support for Third Party APP. Package List: 1 x Cadence and Speed Sensor1 x Wheel Magnet2 x Cable Tie1 x Rubber Band1 x User Manual