BOSS Audio MR52B 150 Watt (Per Pair), 5.25 Inch, Full Range, 2 Way Weatherproof Marine Speakers (Sold in Pairs) Impedance: 4 Ohms, Frequency Response: 80 Hz - 20 kHz, Sensitivity: 89 dB Cone: Polypropylene, Voice Coil: 1 Inch Aluminum Surround: Treated Cloth, Basket: Plastic One 1 Inch Mylar Dome Tweeter Per Speaker Included: Grills and Magnet Covers Dimensions: Depth 6.3 x Width 6.3 x Height 3.3, Weight Per Pair: 3.5 Lbs. 3 Year Platinum Online Dealer Warranty