Model:BW0102023 FM transmitter 1: 15 Channels for choosing. 2: Built-in MP3/WMA format decoding chips. 3: Built-in wireless FM stereo transmitter. 4: Built-in 2.5mm stereo audio input socket. 5: Support SD/MMC Card/USB Flash Disk/MP3 or movable hard disk, portable DVD/VCD; 6: LCD display, Blue backlight. 7: Play Memory function. 8: Angle adjust function. 9: Power supply: car cigar plug, DC 12V 10: Fashionable and innovative design, you can enjoy Hi-Fi music at home or in your car. 11: Horizontal distance of transmitter: >10m 12: Frequency is responded: 20Hz-20KHz 13: Frequency: FM87.7 - 89.1MHz, 106.7 - 107.9MHz 14: Unit Weight: 51g 15: Length: 130mm 16: LCD sice: 22 x 10mm 17: Accessories: 2.5mm/3.5mm audio cable