There are reviews on YouTube, if suitable, feel free to take it. Troubles with the right earpiece, I think this is only a drawback of my device. With its pros: In general, the product corresponds to the description. Good sound, noise reduction, product appearance. Got cons: Clumsy application. After 30-40 percent, the right earpiece is cut off, you have to insert it back into the case for synchronization. And so with a periodicity of 5 minutes. The right earbud runs out faster. The left earpiece is ok. There are no more problems.