4 Inch Dual Marine Speakers - Waterproof and Weather Resistant Outdoor Audio Stereo Sound System with Polypropylene Cone, Cloth Surround and Low Profile Design - 1 Pair - PLMR41W (Black) 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 15 OZ MAGNET: The speaker has a 15 Oz. circuit magnet for a full range audio and complete stereo speaker sound system. It has a frequency response of 100 Hz-18 Khz 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 construction to combat sun damage LOW PROFILE DESIGN: Constructed with a low profile design that can be easily installed on boats, marine watercrafts and other off-road vehicles. The built-in molded grill and classic white look also gives extra style to the vehicle 4 STANDARD SIZE: These marine speakers are easy to install with a standard size of 4 inches, complete wirings and mounting hardware that comes with the package. It also has mounting depth of only 3 inches and cut-out size of 97mm