Ferrofluid Cooling/Damping Neodymium Tweeter Magnet. Natural Roll-Off Low-Pass, 1st Order High-Pass Filter with Electrolytic Capacitor.Black steel mesh grille with satin silver accents Included. Two 4" x 6" (100 x 150 mm) Adapter Plates Included. Frequency Response: 71 Hz - 22 KHz ± 3 dB. Screws, bass knobs, plastic coverings, protective films, etc. All DOA (Dead on Arrival)/ Defective items must be reported within 48 hours after receiving the item. When ordering for a Car Alarm Replacement remote make sure you are ordering the correct one or give us a call to check if it is compatible with your Car/ Car alarm. Physical damage: Item is scratched, torn, wet, burned, blown, signs of misuse, and faulty installation DEFECTIVE or non DEFECTIVE. Factory sealed items: If it's opened and tampered except for certain items.