As the BT manufacture says “I can add the relevant circuit according to the circuit diagram provided below to support Apple iOS communication”. So if I add this circuit to my device, I can communicate with Apple phones as my Classic BT (EH-MA46) was a BLE module. This is the circuit: I have searching to buy the “Apple Co-processor 2.0C” in the market, but it is very difficult. Does Co-processor 2.0C chip have the p/n MFI337S3959? Where can I buy it?