... , 2GB, 4GB memory(option) 3) With built-in stereo wireless transmitter, there are 206 frequency for your selection, rang from ... 9) It can supply power and charge for MP3/MP4/CD/DVD player through power port. 10) 18 languages supported: Simple ... , adjust volume, select EQ modes, language modes, player modes. (AMV video frequency temporarily not support this function) 13) Flexible joint. car mp4 player