COMPLETELY WATERPROOF: This is a marine speaker that’s completely waterproof and can be used for several vehicles because it can withstand heavy water splashes and other outdoor conditions.Impedance: 3 ohm.Speaker size:6.5 inches 200 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 100 Watts RMS/200 Watts peak. It has a frequency response of 85Hz-20Khz and 4 Ohms impedance WEATHER RESISTANT: It’s a weather resistant speaker made of Poly Carbon cone with butyl rubber 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 a sensitivity of 90db and 1” Aluminum voice coil that can be easily used on boats, marine watercraft and other vehicles. The classic white 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”