... for MP3 FM Transmitter Wireless 1.applied in MP3,CD,PC,Laptop2.headphone jack fits any standard 3.wireless FM ... transmitter with LED indicator , MP3 Players, CD players, Laptops, PSP, PC and Walkmans etc. you can enjoy listening high quality music ... output source . 7. Application : MP3, CD, cassette player, camera, game console, PC and Laptop computer etc. 8. Power switch . 9. Input Interface ...