2x 10.1" High Resolution Quality Headrest Monitors Pair of Car DVD Players C1100APair of 10. 1 inch headrest monitors with built in DVD player; 1024 x 600 resolution. Built in HDMI input. The headrest monitors can be simply connected with your smartphone or car stereo, so you can easily play online videos for your kids.(Note: Only applicable to smartphones and car stereos with HDMI output function. HDMI cable is not included.) Build in USB SD card inputs with up to 32GB storage. From movies, music to photos, it allows kids to play