WATERPROOF - design includes a UV-stable basket, Santoprene rubber surrounds, an injection molded mineral-filled polypropylene cone treated with UV inhibitors, and corrosion resistant waterproof connectors to stand the test of time against the elements DUAL IMPEDANCE SWITCH - the dual 4-Ohm voice coils and two-position rocker switch allow the choice of 2-Ohm or 8-Ohm impedance with the simple flip of a switch to make it versatile for either playing it loud or pumping up the bass MULTI-COLOR LED BACKLIT SPEAKER - built-in LEDCast enabled RGB LEDs behind the speaker; Lights can be programmed to be solid, flashing, chasing or sync to the music via our free smartphone app; Controllable only with an external SoundExtreme LEDCast LED controller or SoundExtreme Marine Radio (sold separately) SPECIFICATIONS - Output Impedance: 2 ohms or 8 ohms; Frequency Response: 302Hz – 750Hz; Sensitivity: 2 ohms 85dB +/- 3dB @ 1w/1m, 8 ohms 87 dB +/- 3 dB @ 1w/ 1m; Power Output: 150 Watt RMS (600 Watt Peak) WHAT IS IN THE BOX - 1x 10-inch Subwoofer, a user guide, 1x black grill and 1x white grill, a mounting template, 1x 1FT 2-pin audio cable, 1x 1FT 3-pin LED cable, 1x 9.7FT LED extension cable, 1x Y cable splitter, and 16x stainless steel mounting screws