Receiving data from Neurosky in ESP32 using RFCOMM

[Misharuby]

I am trying to receive data from mindwave mobile 2(Neurosky) over serial bluetooth. This device uses RFCOMM protocol and serial port profile of bluetooth. I am using arduino IDE. I tried to connect it from many codes but I can't understand what's the problem. I used both of the builtin code of BLE_Server and BLE_client but i got nothing on serial monitor. Although, my esp's bluetooth and my mindwave device bluetooth both are working properly. Then I tried to receive data through bluetoothserial library I have posted a screenshot below. Can anyone tell me what should I do to receive data from Neurosky over serial bluetooth using arduino IDE in esp32 and without using android smartphone??