1. BLE 5.0 and ANT+ dual-protocol support, compatible with most mainstream smart fitness devices 2. Two modes, freely switchable (the sensor can only perform one function at a time) 3. One-button mode switching; reconnection to the display device is required after switching modes (green light indicates speed mode; white light indicates cadence mode) 4. IPX6 waterproof rating, preventing water splashes during rides and ensuring peace of mind during rainy weather 5. Modes: speed/cadence 6. Power: built-in CR2032 button battery 7. Transmission protocols: BLE 5.0 / ANT+ 8. Size: about 3 x 3.5 x 0.9cm 9. Weight: about 8.1g
