How do iPhone connect to headrest DVD player via HDMI

Connect your iPhone, iPad, or iPod touch to a headrest DVD player, it needs an Digital AV adapter and an HDMI cable.

Steps:

1. Connect an HDMI cable to your headrest DVD player.

2. Connect the other end of your HDMI cable to your Digital AV adapter.

3. Plug your Digital AV adapter into the charging port on the bottom of your iOS device.