I have a maxell's mxl-1191-t wireless headphone which came with a USB dongle. I connect the dongle to the USB port of my laptop and the headphone connects automatically to the laptop. The problem is that I can't directly connect the headphone with the laptop through bluetooth without using the dongle. I looked through the manual but it didn't show any guidance to connect with the laptop using bluetooth but I think it should be possible with all headphones. Please help me with this.