I am so sorry for my mistake, I didn't recognize that you need a headrest DVD actually, I just noted your direct product order link from Alibaba inquiry, in fact, as you got, HM866-MP5 is just a monitor without DVD function, apologize you for bring such big inconvenience. But, in order to decrease your lost, may I forward three solution as following：
1. Could you help us try to sell this monitor in your market, because the returning freight is expensive even much higher than the worth of product itself.
2. If nobody buy it, do you mind to use it and connect DVD player, whose video will transfer to HM866-MP5,you still can watch DVD program, how do you think ?
3. If you don't like it at all, of course, we accept that you return it to us, just could you please pay the shipping cost in advance, then, we remove the cost from your new order DVD player, we will recommend another model with DVD player, but its not the same appearance with HM866-MP5.
I wait for your final advice.