iKross Multifunction LED Car FM Radio Stereo Transmitter with USB Retractable Cable for Samsung Galaxy Tab A/Tab S/Tab 4/ Tab 3 Lite/NotePro/TabPro and more This iKross Multifunction LED Car FM Transmitter lets you Enjoy your favorite music and charge your device at the same time while driving Bluetooth v4.0. Make and Receive Calls on your Phone Hands-Free while driving. Flexible Neck allows you to angle at any position to fit most car sockets location. Goose-pipe with rotation prevention design keeps your devices steady & firm in its position USB charging Port: Output voltage: DC 5V, 1A. Effective Range: approx. 15ft. Frequency Range: 88.1-107.9MHz. cool red LED lit indicated. LCD FM frequency display with backlight