Compatible With Audio Output of iPod / iPhone, Smartphones and MP3 Players View larger Compatible With Audio Output of iPod / iPhone, Smartphones and MP3 Players Another great feature that comes in really handy is the 3.5mm Aux-in. You can connect a device that has an Auxiliary output (such as your iPhone/iPod, smartphone and MP3 player) straight into the Auxiliary input of your ATV22C. So basically a cable that has (2) 3.5mm audio (male) connections. SPECIFICATIONS All-Terrain sound system ideal for ATV/UTV, Jet Ski and snowmobiles.6.5 inch Marine speakers (2)Frequency response: 15 to 25,000 HzSignal to noise ratio: 90 dB1.5 inch soft dome diaphragm high performance tweeters (2)Speakers powered by a built-in internal amplifierMax power: 450 wattsRMS power: 225 wattsFuse: (1) 10A3.5mm Aux-inPlug and play installationIncludes (2) heavy duty zip ties and (2) heavy duty straps with Velcro for any mounting positionThe ATV22C can be powered from a vehicles cigarette lighter port, or be hard wired to the batteryDimensions: 26” L x 7.50” W x 7.50” H Cone - Poly Injection (Water Resistant) View larger Cone - Poly Injection (Water Resistant) …But not water proof. There is a difference between the two. A substance called “Polyurethane” and is categorized as a “Polymer". It is a resilient, flexible and durable manufactured material that can take the place of paint, cotton, rubber, metal or wood in thousands of applications across virtually all fields. It can be hard like fiberglass, squishy like upholstery foam, protective like varnish, bouncy like rubber or sticky like glue. In the specific case of our cones, this material allows for maximum flexibility that produces great sounding speakers lasting you a long, long time. Fully Marinized All of the major components of the ATV22C such as the spider, surround, tweeters, etc. have been specially coated to have the protection that they need from corrosion that is present in a humid and salty environment. Whether on a boat or on land, the ATV22C is built to endure various environmental challenges.