Make hands-free calls and wirelessly stream music through your vehicle's radio Stream audio files using Bluetooth on your device or with the 3.5mm AUX audio cable DSP echo cancellation produces crystal-clear calls, even in noisy vehicles Voice-activation feature lets you answer incoming calls hands-free 10W, 2.1AMP illuminated USB port car charger fits into any vehicle's 12V power port, powering your transmitter and charging your device simultaneously LCD display is easy to read and allows you to adjust the neck for viewing at different angles Locate an unused FM frequency on your vehicle's stereo then match it with the same frequency on the FM transmitter Includes a remote for operation