Features 1) Built-in FM transmitter, special shape, make you more convenient to enjoy MP3 with car audio 2) Can be charged by cigarette lighter jack directly, let you enjoy music without time limited 3) Full FM frequency, has 216 FM channels optional 4) Double functions of the earphone (can be used as an aerial) 5) Supports MP3/WMA/WAV formats of music 6) Clear OLED display 7) Special intelligent charge function, extends 2-3 times of the using time of battery 8) Supports ID3, LRC lyric synchronization 9) FM radio, supports radio recording 10) Various EQ effects and play modes 11) Supports software upgrade