LousyFool, I see there are options for "This solved my question" and "This helped me". I wish there were an option for "This was not helpful" and when selected, removed points from the contributor. You have not been helpful during the course of this whole thread. (If you weren't such a jerk, I would be more respectul.)
I stated already that I paired my BT headset to my computer and had previously paired it to my iPhone. Therefore, Marque 2 manual is unnecessary as was your "contribution".
Also, the Marque 2 manual that you reference and my own experience contridicts your conclusion that only one device can be paired AND that the device must be dead to pair it with another device. How else is my BT headset paired with BOTH my MacBook Air & my iPhone? That may be true with some devices (e.g., Sanetech wireless speaker), but not this device. In the case of my wireless speakers, it only allows pairing with EITHER my iPhone or my MacBookAir. Be careful about absolutes. My assumption is not wrong.
My issue is long since solved. Do you have anything of value to contribute to TXflyboy2001?