Milennia MA100PKGIncludes:AMP (MIL MA-100)Fully marinized circuit boards to keep salt and corrosion away from the critical circuit pathOnboard high low filterGreat for adding another pair of speakers.Small footprint45W, 20W RMSOverall Size:  4" L x 3-3⁄16" W x 19⁄16" HSpeaker (SEA 5582) Weatherproof 5" 1-Piece SpeakerAll molded waterproof5 oz magnet75 Watt High Performance Speaker1" tweeterInstallation size: 4-½" W x 1" D x 4-½" HOverall size: 5-¾" W x 2-½" D x 5-¾" HMini Plug (Sea-mini)72" cordDimensions: 30 mm diameter, 24 mm deep