Setup is easy and intuitive. But it doesn't stay connected to my GPS watch. Shuts down every few seconds to several minutes. There's no obvious way to get him to stay connected. The user manual seems to be incomplete, it does not provide any information about the LED indicators other than on, off and operational. seems to be the same as "chileaf" cl830. All in all it seems to be working. but it's frustrating to keep this thing connected. During my last bike rides I spent a lot of time keeping in touch. This makes the product rather useless and spoils the quality of the training.
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