* Bluetooth 5.0 and ANT+: Bluetooth 5.0 and ANT+ dual-mode system, which detects cycling rhythm and speed at the same time, and transmits real-time data to smart phones, sports watches or bicycle computers via Bluetooth and ANT+.

* Battery replacement: Built-in replaceable button battery CR2032, battery life is 500 hours, please pay attention to the positive and negative poles of the battery when installing the battery.

* Compatible with mobile phones and APP: The product is suitable for iOS 9.0 or above, iPhone 4s or above

* Android 4.3 or higher with Bluetooth 5.0. Compatible with Wahoo Fitness / Runtastic Pro / Zwif / UA Run / Openrider Strava / Endo mondo / ZWIFT.

* There are 2 kinds of light display, if the speed sensor is installed correctly and the wheel is rotated, the LED indicator will flash blue; if the cadence sensor is installed correctly and the crank is rotated, the LED indicator will flash green .

* The weight is only 19.2 grams, which is light, thin and compact, and easy to install. With IP67 waterproof function, you can also enjoy riding in rainy days.