Features:

These speakers are rated using real-world RMS power ratings; there are no inflated power claims. There is no imitation material or inflated claims of strength like those seen with other products. These speakers can handle up to 300 watts of power at their max. (Other manufactures' ratings for 500 watts are about equivalent to our 200 watts RMS)
An upgraded, steel-reinforced mounting bracket - The plastic used for the brackets is both strong and impervious to water. Nylon and steel reinforcements give them superior strength. Nylon makes fine-tuning a breeze, while steel's steadfast durability ensures it can resist even the harshest environments.
The components and materials used in these speakers have marine-grade quality. Water, sea water, and humidity won't harm them. As an added bonus, the terminals (often the first component of maritime speakers to suffer damage from water) are constructed of stainless steel and are rustproof. The speakers are additionally protected by a watertight covering.
These are guaranteed to last a lifetime out on the water, no matter the conditions.
A quarter-inch screw is used for attachment "to accept larger mounting bars, this model is longer than the others we stock. We found these to be ideal for mounting on Jeep Cherokees and even ATVs, in addition to using on wakeboard towers on boats.

Features:

(8) Rockville RWB80B Pair "600 Watts of Black WakeBoard Tower Sound System Speakers
Watts (300 Watts per speaker) (300 Watts per speaker)
8 " In-Ear Headphones with Built-in Bluetooth Audio Streaming
Mounting Bracket Height-Adjustable Nylon with Integrated Steel
Features Stainless Steel Fixings for Easy Installation
1 "Tweeter with a polymide dome and a neodymium magnet
Integrated Bidirectional Crossover System
Total Resistance to Both Salt and Fresh Water Conditions
Totally Impervious to Moisture and Rust
Rubber gaskets are used to seal the terminals.
Optimally Balanced for Public Address Systems
Cone made of Polypropylene and Mica Injected Santoprene
Designed with a Powerful BL Magnet Motor Structure
Magnets with a High Y30 Density
Extra-Large Kapton Voice Coil, 1.25 Inch

The big mounting screw is designed to fit vehicles with roll bars, such as Jeep Wranglers and ATVs with cages.
You Can't Go Wakeboarding Without One of These These work with bars having a diameter between 1.26 inches and 2.05 inches, and the longer screws we supply make them adaptable to even larger bars.
Designed to work with a roll cage in any Jeep Wrangler, these screws are unusually long.
Includes rust- and corrosion-proof stainless-steel screws for installation.

Specifications:

Peak Power Handling: 300 Watts
RMS Power Handling: 200 Watts
Frequency Response: 60?20,000 Hz
Sound Pressure Level: 98dB @ 1w/1m
Impedance: 4 Ohms
Mounting Depth: 10.5"

Package Includes:

(2) Wakeboard Speakers
Mounting Brackets
Integrated Grill
Installation Hardware
Owner's Manual