1.1.5'' and 1.8 '' TFT display with wireless FM transmtiter and built-in FM radio 2.MP4/MP3/WMA player, USB storage disk(USB2.0 interface), Voice recorder, line-in recording 3.Support MP1,MP2,WMA,MP3,WMV,MAV,ASF format, Support Multi-language display 4.Games, picture browse, TXT reader 5.Charged by car lighter or USB port .Powered by built-in 3.7V/280MHA Li-ion battery 6.Transmitter playing time >4 hourse,playing music time>7 hours,Distance for transmitting: over 3 meter 7.Transmitter frequency: 87.5-108Mhz , 0.1 interval ; receiving frequency: 87.5MHz--108.0MHz 8. Built-in flash memory: max. support 4GB; external TF card: max. 4GB 9. Built-in double louder speaker, sound as high and perfect as mobile phone. 10. TF card slot to expand memory, max. 4GB .