Pioneer TS-ME770TSW are a pair of 7.7-inch, 2-way coaxial marine tower speakers designed for boats and other outdoor vehicles. They are built to withstand marine environments, featuring durable, weatherproof construction and built-in RGB LED lighting. These speakers deliver powerful audio, engineered to be heard clearly over wind and waves. 
Product features
Water- and UV-resistant: The speakers are IPX7-rated for water resistance and ASTM D4329-certified for UV exposure, meaning they are built to last in harsh marine conditions.
Built-in RGB lighting: Integrated LEDs use a semi-transparent cone as a diffuser to create a multi-color light show. Note that an external RGB controller is required and sold separately.
Powerful audio: They have a maximum output of 250 watts and 100 watts nominal power, delivering strong sound quality with deep bass and clear highs.
High-quality construction: The speakers feature a mica-reinforced IMPP (Injection Molded Polypropylene) cone and a 1.125-inch polyimide dome tweeter for superior sound clarity and durability.
Versatile installation: The injection-molded enclosures are designed to mate with a Pioneer clamp system (UD-ME30CP, sold separately) that fits tower tubing from 1-7/8" to 3" in diameter.
Engineered for marine use: The speakers incorporate a unique spider material that allows for natural cone movement while preventing water infiltration, which can cause corrosion.