Kenwood KDC-BT362U Bluetooth Smartphone Player Car Stereo + 2) 6.5 Inch Speakers Kenwood KDC-BT362U Bluetooth Stereo Receiver CD Player TDF(Theft Deterrent Faceplate) Front AUX & USB Interface with slide protection cover 4) Kenwood KFC-C1655S 6.5" 600 Watt 2-Way Car Audio Dual Cone Speakers (4-pack) Frequency Response: 35 Hz - 20k Hz - Cutout Diameter: 4-7/8inch