Even if you don't have Bluetooth, you can still enjoy wireless music in your car. The Smartphone Stand With FM Transmitter has a built-in digital transmitter that streams music from your MP3 player to an empty channel on your car’s FM radio. You can even connect a smartphone and use the car’s speakers as a speakerphone. The Smartphone Stand With FM Transmitter connects to your windshield or a smooth part of your dashboard with a large suction cup. A rubberized spring clamp securely holds most any device. Plugs into your car’s cigarette lighter.