BOSS Audio Systems CH4220 Chaos Series 4 Inch Car Door Speakers - 200 Watts (per pair), 2 Way, Full Range, Sold in Pairs, Bocinas Para Carro Dimensions: 6.2 x 6.2 x 2 inches, Impedance: 4 ohms Mounting Depth: 1.79 inches, Mounting Hole: 5.15 inches, Item Weight: 1.24 Lbs. Frequency Response: 100 Hz to 18 kHz, Sensitivity: 85 dB @ 1 watt/1 meter Polypropylene Cone, Foam Surround, Stamped Basket, 0.77 Inch Voice Coil BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality