Two bluetooth device with same MAC ID... Will it receive same data in both device?

Hi,
If we have two bluetooth device with same MAC address and if we are sending data to that address, will both device receive the data ?
Is there any possible issues like channel collision on air or some thing like that?

There maybe protocols collision. I don't know the WLAN and BT communications protocol's detail.
But I suspect that they are closed loop for power control. If so, there should be problems. One BT said to TX to increase power, but the other maybe said to decrease.
And one BT said to re-transmit packet 8th, but the other said re-transmit 10th packet. That's the problem.