SCOSCHE AUXMICR 3.5 mm Aux Input Cable with Built-In Mica for Hands free Plugs directly into your vehicle's MP3/AUX input to allow hands free phone conversations to play through your speakers No need for Bluetooth Compatible Radios DSP echo cancellation ensures a crystal clear conversation even in noisy vehicles Plugs directly into your vehicle's MP3/AUX input to allow hands free phone conversations to play through your speakers^No need for Bluetooth Compatible Radios^DSP echo cancellation ensures a crystal clear conversation even in noisy vehicles