COMPLETELY WATERPROOF: This is a marine speaker thats completely waterproof and can be used for several vehicles because it can withstand heavy water splashes and other outdoor conditions 150 WATTS POWER: The speaker has a 20 Oz. circuit magnet for a full range audio and complete stereo speaker sound system. The power output is 75 Watts RMS/150 Watts peak. It has a frequency response of 80Hz-18Khz and 4 Ohms impedance WEATHER RESISTANT: Its a weather resistant speaker made of Polypropylene cone with cloth surround for a rugged and durable design. It is also engineered with heavy duty molded ABS plastic basket and grill construction to combat sun damage LOW PROFILE DESIGN: Constructed with a low profile design with 1 Aluminum voice coil that can be easily used on boats, marine watercraft and other vehicles. The classic black look also gives extra style to the vehicle 6.5 STANDARD SIZE: These marine speakers are easy to install with 6.5 inches standard size, complete wirings and mounting hardware. It has a universal standard OEM replacement size with a mounting depth of only 2.48 and cut-out size of 5.31