Feature: 1.LED displays song title&lyric & FM frequency/track. 2.With multi-language, support Chinese, English, French, Russian, Korean, Japanese, Thai, Italian, Turkish, Hungarian, German, Portuguese, Swedish, Czech, Polish, Spanish, Arabic, Romanian, Greek. 3.Two USB ports,for charging & for USB flash drive. 4.With 3.5 mm line-in jack, support external audio devices. 5.Support TF card(not included). 6.With power-off memory function. Specification: 1.Name: FM transmitter MP3 2.Input voltage: DC 12V-24V 3.Files supported: MP3 4.Headphone hole: 3.5mm 5.Working current: 60-70mA 6.Frequency range: 87.5-108.0 MHz 7.Effective distance: 5-10 meters 8.Signal to noise ratio: 85dB (FM: 65dB) 9.Harmonic distortion: