Kindly notice: If you want to talk with one rider,you can talk with him or her via phone calling, if you want to talk with more than one riders, you can creat a wechat team for you all and talk each more→other via the voice call. Using the latest Bluetooth 5.3 technology, superior signal transmission, ultra-low power consumption, all Bluetooth devices, automatic answering function, switchable manual answering phone function, safe and fast, built-in high-quality anti-interferen
