Pioneer DEH-1700 CD Receiver SuperTunerIII D - technology that enhances AM & FM performance by significantly reducing distortion while improving stereo separation & sensitivity. S/N Ratio is improved. Reduces the effect of multi-path noise, which you find in areas that are near tall buildings Detachable Faceplate Security - faceplate can be removed, leaving a blank black face to deter thieves Automatic Gain Control - Removes skipping due to bumps and warped CDs Blue-Black LED Display 24 Station/6 Button Presets - 18 FM/6 AM