VicTsing 3.5mm Jack Stereo Radio Car Wireless FM Transmitter for Smartphones MP3 Tablet - Blue FM Transmitter for iPod / iPhone 5G/4S/4G/3GS/3G and other MP3 / 4 players,mobile phones. Hands free talk function offer you more safty during driving. LCD displayers frequency with backlight. With Touch key design,High fidelity stereo. Digital PLL,transmisson is stable in different environments.