Fusion MS-OS420 Marine Compact Box Speakers (Pair)

100 watts peak power, 25 watts RMS power Efficiency (1W/1M): 86Db, frequency response: 80Hz - 20Khz impedance: 4 ohm 4" polypropylene/nbr Surround woofer, PEI cone tweeter Speaker pair, includes adjustable wall mounting bracket Dimensions: 5 3/8"W x 7 7/8"h x 5 7/16"d not including bracket