100% WATERPROOF AND UV RESISTANT – Wash the speakers off with a hose, meets IP67 international standards, no worries with salt water, fresh water, mud, sand, or snow; ASA enclosures with 316 Stainless steel hardware; Waterproof audio and LEDCast connection jacks for high quality corrosion free connections MULTI-COLOR LED BACKLIT SPEAKERS – – built-in addressable RGB LEDs with millions of colors: solid colors, fading, jumping, chasing, speed and variable brightness; Controllable with an external LED controller (sold separately); LEDCAST CONNECTION READY - to connect to an LEDCast Enabled device, so you don't have to buy all the extra hardware to run your LED's 400 WATTS PEAK OUTPUT – (130 watts RMS) power the 6.5-inch low to mid-range woofers and 1.5-inch tweeters to be as loud as you like; Smooth detailed highs and rich mid-bass lows to cut through all the wind and roar; Built-in 2-way crossover network WOOFER SPECIFICATIONS - an 6.5-inch low and midrange woofer made of polypropylene carbon fiber and mica blend with Santoprene rubber surround; Impedance: 4 ohms [Frequency Response: 52Hz - 5KHz] Sensitivity: 89dB TWEETER SPECIFICATIONS - a 1.5-inch tweeter made of titanium double dome neodymium; Impedance: 4 ohms [Frequency Response: 2.2KHz - 20KHz] Sensitivity: 92dB