Lost your original GMC Denali headphones?  These are the factory replacement parts you need!  These will work perfectly with your factory installed Infrared DVD Entertainment system.  They are wireless, so there's no need to worry about tangled wires.  You will receive TWO headphones in this package - that's enough for two passengers to wear. 

 Features include:

• Personal volume control to adjust sound level
• Adjustable headphone band for optimal fit and comfort.
• Auto on/off  for extended battery life.  

  These are "Single Channel"  headphones. This means that everyone in the car wearing headphones will need to be listening to the same channel If you have two DVD players in your car, then you will need a "Two Channel" headphone for users to be able to listen to different DVD's.