I find out the field of Speaker ID allows users to input by themselves .

My speaker ID is 773, but after input this ID,  it does not work.

When you import the driver to VK6000 : 

1. Copy the command 'Keep Alive' [27704400100000000000000000000000]

2. Click advanced properties, paste the command above to the "Keep Connection Alive Command" column

3. Set the interval time to 5 secs

Mic On and Off :

1. Get the ID of mic

2. Convert the ID to HEX value

     Example: if the mic ID is 773 -> the HEX will be 03 05

3. Swap the high bit and low bit, that mean type in 05 03

For further ID information please reference the attached file -  Bosch DCN ID List Table