SODIAL(R) 3.5mm Black In-Car FM Transmitter With Build-in Rechargeable Battery For iPhone 6 Plus iPhone 6 5 5S 5C 4S 4 Samsung Galaxy S2 S3 S4 S5 Note II 2 III 3 4 MP3 Hands-free function makes you more safety during driving LCD displayer displays frequency with backlight Powered by rechargeable built-in lithium battery which works more than 3.5 hours The transmitter will automatically mute the music during calls and resume playing music after calls FM Transmitter is apply to all mobile phones with 3.5mm audio socket and portable CD, MD, MP3/MP4, PDA, Tablet PC, iPod, DVD, etc.