Take your music on the road with the Smart Tune FM Transmitter from i.Sound. The high fidelity sound transfer and stable transmission in different environments ensure an enjoyable music experience while traveling. Transmits audio wirelessly up to 30 feet. Perfect for at home or in your car with a built-in rechargeable battery, included car charger and USB charging cable. Hands free talk function offers more safety while driving. Compatible with most Androids, Blackberry, and Microsoft phones. LCD displays frequency with backlight. Includes touch key design and high fidelity stereo with full frequency range and memory for last frequency.