FM Transmitter device by Hoco for easy and quick music playback on any car stereo with a radio, without additional actions. Choose an empty frequency that is not broadcast by an active radio station and synchronize the FM Transmitter device and your stereo to the same frequency to listen to music from the car speakers. It features a Handsfree function so you can receive calls and talk on speakerphone. It supports music playback directly from your mobile via Bluetooth and from external MicroSD memory cards. Additionally, through the USB ports, you can charge your smartphone. Finally, it is powered by the car's cigarette lighter.