1.support Mp3/WMA formats; 2.Built-in FM transmitter, total 216 frequencies 87.5-108.0MHz; 3.Liquid Crystal Display: Frequency, Songs No. , Volume , EQ mode shown. 4.playing automatically after ing the player the ciger ligher jack; 5.five EQ modes: Nature, Rock,Jazz,Soft,SRS etc. 6.current frequency saved while power off ; 7.Line-in function: connect Mp3 player, CD player, DVD player etc. and import music files them and play and transmit. 8.Infrared remote control: digital ing frequency, adjust volumn, EQ modes. 9.12V~24V Power supply. 10.Flash memory built-in optional. Specification: 1.LED display 4-bit digital tube indicator 2.PC connection USB2.0 3.Power supply DC 12V - 24V 4.Music format MP3 / WMA 5.5 EQ modes optional (Eq1)NORMAL, (Eq2)ROCK, (Eq3)SOFT, (Eq4)JAZZ, (Eq5)SRS 6.Operating Current <150mA 7.Bit rate 32K bps-256K bps 8.FM Frequency Range 87.5 to 108.0MHz, 0.1MHz per step 9.SNR 85dB 10.Harmonic Distortion <=0.05% 11.Operating temperature - 5centigrade - 40 certigrade. 12.Audio Source MP3/MP4 Player, CD and DVD players, etc. 13.Transmitting Distance:>5M 14.Operating System Windows98 / SE / ME / 2K / XP, MacOS10, Linux2.4.2 15.Accessories User's Manual, USB Cable.