Insignia headphones connecting then disconnecting.

I am relatively new to Bluetooth and I wanted to use Bluetooth headphones with my Mac Mini. I bought the Insignia NS-BTHDP headphones/headset and it has successfully paired with the Mac Mini as indicated in the Bluetooth preference pael. When I first turn the headphones on the indication will change to "connected" but within a few seconds it changes back to "not connected" and the indicator lights on the headphone alternately flash blue and red indicating that it is in pairing mode. I tried disconnecting both the Bluetooth mouse and Bluetooth keyboard to see if it was a bandwidth problem but this did not help. In the Bluetooth preference panel I have selected to use the Insignia as headphones and not a headset. I am sitting less than 10 feet away when trying to get it to connect so it should not be a distance problem.

Any suggestions?

TIA