* Notes: Long-distance communication can only be achieved when the connected device also supports Bluetooth 5.0. It is not possible to connect two identical devices (for example, two headphones of the same specification) at the same time. The communication distance of 300 meters is a theoretical value. Most manufacturers will limit the communication distance of Bluetooth 5.0 devices to 10 meters in order to reduce power consumption. Before purchasing, please confirm whether the device supports long-distance communication.