... or processor, it adopts plug and play to realize the wireless data transmission between devices. It has two devices used together ... it is a pair of Bluetooth RS232 module, the process will be completed automatically. Features:* Bluetooth 4.0* On-board antenna or External antenna* Working ... , 2.4, 4.8, 9.6k, 19.2k, 38.4k, 57.6k, 115.2k etc.),The maximum is 1.384Mbps( the original baud ...