Rechargeable LCD Displays Wireless 3.5mm In-car Fm Transmitter for iPhone5 4S 4 iPod Touch Galaxy S3 4 MP3 FM Transmitter for iPod/iPhone 3G/3GS/4 and other MP3/4 players,mobile phones. Hands free talk function offer you more safety during driving. LCD displays frequency with backlight. With Touch key design,High fidelity stereo. Digital PLL,transmission is stable in different environments.