4" Compact Marine Box SpeakersGreat for on your boat or outside your home! Fusion&';s Marine/Outdoor Box Speakers are carefully designed and manufactured specifically for marine/outdoor use. Featuring an adjustable mounting bracket with all mounting hardware supplied, these speakers are perfect for installation on a alloy vessel where flush mount speakers are not always practical. The solid construction and powerful sound, combined with competitive pricing make the MS-OS420 speakers a great value for money option.Specifications: Box Type: Sealed Cone Material: Polypropylene/NBR Surround Efficiency (1W/1M): 86dB W/M Frequency Response: 80Hz - 20Hz Impedance: 4 Ohm Peak Power: 100W RMS Power: 25W Woofer Size: 4" Tweeter Type: PEI Cone WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Watts Max: 100w Mounting Style: Bracket QTY: Pair Size: 4" Cutout Size: N/A Box Dimensions: 7"H x 10"W x 12"L WT: 6.3 lbs UPC: 878816006567 Owner&';s Manual (pdf)